Entries |
Document | Title | Date |
20080229843 | Tensile Tester - The invention provides a tensile tester, for characterising the extension properties of a fabric, comprising: a plurality of dual-mode fabric-engaging units located at a plurality of points. The fabric-engaging units are operable in a first fabric-gripping mode to releasably grip a fabric to be tested, and in a second fabric-tensioning mode to impart tension to a fabric to be tested, between gripped points, by displacing the fabric. The tester also has force measurement means to measure the tension so imparted and displacement measuring means to measure the displacement of the fabric. The fabric-engaging units are arranged and controlled so as to measure displacement-force characteristics along two or more axes of the fabric to be tested. Embodiments of the invention allow for determination of stretch characteristics in the Course, Wale, and two Bias directions of a fabric, as well as the characterisation of tension decay. | 09-25-2008 |
20080264178 | LEVEL METER EMPLOYING THE RADAR PRINCIPLE - A level meter, employing the radar principle for measuring the fill level of a medium in a container, includes a signal transmitter serving to transmit an electromagnetic signal, an electric conductor system for conducting the electromagnetic signal into the container and returning reflected components of the electromagnetic signal from the container, and a signal receiver serving to receive the reflected components of the electromagnetic signal. An electric conductor system is provided at its upper end with a suspension by which it is attached to a device on the container. A tensile-load testing device is placed between the suspension and at least a part of the electric conductor system, featuring a break point for the electromagnetic signal, with the distance between the break point and the signal transmitter or the signal receiver varying as a function of the tensile load bearing on the conductor system. This permits easy monitoring of the tensile forces to which the conductor system and the suspension are exposed, so that any damage to these devices as a result of excessive loads can be prevented. | 10-30-2008 |
20090019941 | PULL TEST CALIBRATION DEVICE AND METHOD - A device and method permits absolute and relative calibration of a pull-test device for testing the mechanical strength of electrical bond deposits. The invention provides repeatable breaking of a test specimen such as a wire ( | 01-22-2009 |
20090056468 | FORMING LIMIT STRAIN ANALYSIS - In the computed-based analysis of forming processes, for example, manufacturing sheet metal parts for the automobile industry, the material loading is represented by major and minor strains ε | 03-05-2009 |
20090199652 | TENSILE SPECIMEN MEASURING APPARATUS AND METHOD - A tensile specimen measuring apparatus includes a generally elongated base, a generally elongated pin channel provided in the base, a measuring pin carrier slidably mounted in the pin channel of the base, at least one contact pin carried by the measuring pin carrier, at least one contact pin disposed at an end of the pin channel of the base in generally spaced-apart relationship with respect to the at least one contact pin carried by the measuring pin carrier and an electronic measuring device engaging the at least one contact pin carried by the measuring pin carrier. A tensile specimen measuring method is also disclosed. | 08-13-2009 |
20090277277 | Tension Monitoring Arrangement and Method - Tension monitoring is described using a sensor which may exhibit an offset for which compensation may be provided to produce a zero voltage amplified output or to increase dynamic range. An arrangement determines whether a power reset is responsive to a battery bounce such that an initially-measured system start-up parameter can be retained. The start-up parameter is automatically saved at start-up if the power reset is responsive to a start-up from a shut-down condition. The start-up parameter may be a zero tension amplified output responsive to the sensor offset at zero tension. Protection of a tension data set is provided such that no opportunity for altering the data set is presented prior to transfer of the data set. A housing configuration forms part of an electrical power circuit for providing electrical power to an electronics package from a battery. | 11-12-2009 |
20090308173 | APPARATUS FOR AND METHOD OF MEASURING TENSION IN A HANDRAIL FOR AN ESCALATOR OR MOVING WALKWAY - An apparatus for and a method of measuring tension in a handrail for an escalator or moving walkway provides for three support or contact points on the handrail. Two outer or first and second support points are provided by rollers at either end of the support bar. A centre point is provided by a suction cup or other attachment device that grasps the handrail. The centre point is displaced relative to the first and second points by an amount less than a clearance between the handrail and an underlining guide. This displacement and the load necessary to cause the displacement, together with the overall dimensions of the apparatus enable the tension in the handrail to be provided. The use of a suction cup effectively overcomes the requirement to provide a centre point on the opposite side of the handrail from the two other support points, this other side not otherwise being accessible in use. | 12-17-2009 |
20100000328 | METHOD FOR MEASURING STENT DISLODGEMENT FORCE - A method for measuring the force necessary to dislodge a stent from a balloon catheter to which it is mounted. The balloon catheter with a stent mounted thereon is encased in a mass of gel material. The force necessary to pull the catheter from the gel is measured. | 01-07-2010 |
20100206089 | METHOD AND APPARATUS FOR TESTING POST-INSTALLED ANCHOR RODS - A method is provided for testing a post installed anchor rod to determine the stresses on the anchor rod. The method comprises the steps of providing a linear hydraulic actuator comprising a cylinder, a piston slideable therein in response to a change in hydraulic pressure, and a longitudinal opening formed in the piston for receiving the anchor rod, positioning the anchor rod in the opening, releasably securing a fastener onto the anchor rod to a position in contact with the piston, actuating the linear hydraulic actuator to induce a force on the fastener and thereby a tensional stress on the anchor rod, and measuring elongation of the anchor rod resulting from the tensional stress. | 08-19-2010 |
20100224006 | Internal Stress Actuated Micro- and Nanomachines for Testing Physical Properties Of Micro and Nano-Sized Material Samples. - This invention provides an internal stress actuated micro- or nano-machine for measuring mechanical and/or electrical properties, e.g. traction measurement, compression measurement or shear measurement, on micro-scale and nano-scale films or multi-layers of materials such as metallic materials, carbon-based materials and silicon-base materials. The device of the invention has applications in materials production industry, as well as in micro-electronics and for surface treatments and functionalization. | 09-09-2010 |
20100224007 | APPARATUS AND METHOD FOR TRANSVERSE TENSILE STRENGTH TESTING OF MATERIALS AT EXTREME TEMPERATURES - A composite specimen for conducting transverse tension strength testing may include a solid cylinder comprising parallel opposing ends, a cylindrical surface extending between and around the parallel opposing ends, and only parallel planar plies extending between and perpendicular to the parallel opposing ends. The parallel planar plies may comprise fibers extending within the parallel planar plies. | 09-09-2010 |
20100263453 | APPARATUS AND METHOD FOR SIMULATING LIFETIME OF AND/OR STRESS EXPERIENCED BY A ROTOR BLADE AND ROTOR DISC FIXTURE - An apparatus for simulating stresses experienced by a rotor blade root in a complementary disc fixture, especially in gas turbine engines. The apparatus comprises a mounting member for receiving a blade speciman having a root. The mounting member has an aperture for receiving the root of the blade specimen, and blade contacting regions on either side of said aperture for holding said blade specimen in said aperture. The apparatus further comprises an actuator for applying a tension load to said blade specimen. The blade contacting regions are undercut such that there is a gap between said blade contacting regions and a main body of said mounting member, whereby the blade contacting regions are able to deflect outward into said gap when a tension load is applied to the blade specimen. | 10-21-2010 |
20100275700 | Tension Monitoring Arrangement and Method - Tension monitoring is described using a sensor which may exhibit an offset for which compensation may be provided to produce a zero voltage amplified output or to increase dynamic range. An arrangement determines whether a power reset is responsive to a battery bounce such that an initially-measured system start-up parameter can be retained. The start-up parameter is automatically saved at start-up if the power reset is responsive to a start-up from a shut-down condition. The start-up parameter may be a zero tension amplified output responsive to the sensor offset at zero tension. Protection of a tension data set is provided such that no opportunity for altering the data set is presented prior to transfer of the data set. A housing configuration forms part of an electrical power circuit for providing electrical power to an electronics package from a battery. | 11-04-2010 |
20100313670 | DEVICE FOR TESTING STRUCTURAL PANELS - A testing device for structural panels is characterised in that it includes passive apparatus in the form of a mount and interface apparatus between the mount and the panel to geometrically apply stresses representing the stresses caused by the parts surrounding the panel during a normal utilisation thereof. | 12-16-2010 |
20110000308 | DEVICE FOR TESTING THE COATING OF A VANE BASE - A device for testing a coating for a turbomachine rotor disk blade root, including two test piece halves, each including a bearing surface coated with the coating, one counter test piece including two bearing surfaces, and a machine including a first holding system for the counter test piece and a second holding system for holding the test piece halves around the counter test piece. With a tensile mechanism, the holding systems are subjected to predetermined tensile cycles along the tensile axis, during which the tensile force is transmitted from one holding system to the other via the respective bearing surfaces contacting the counter test piece and the test piece halves. The second holding system includes a resilient return mechanism allowing for the two test piece halves to open up in a direction perpendicular to the tensile direction. | 01-06-2011 |
20110056304 | Controlled Shear/Tension Fixture - A test fixture for simultaneously testing two material test samples is provided. The fixture provides substantially equal shear and tensile stresses in each test specimens. By gradually applying a load force to the fixture only one of the two specimens fractures. Upon fracture of the one specimen, the fixture and the load train lose contact and the second specimen is preserved in a state of upset just prior to fracture. Particular advantages of the fixture are (1) to control the tensile to shear load on the specimen for understanding the effect of these stresses on the deformation behavior of advanced materials, (2) to control the location of fracture for accessing localized material properties including the variation of the mechanical properties and residual stresses across the thickness of advanced materials, (3) to yield a fractured specimen for strength measurement and an unfractured specimen for examining the microstructure just prior to fracture. | 03-10-2011 |
20110088481 | ATTACHMENT DISPLACEMENT SENSOR FOR MEASURING THE CHANGE IN LENGTH OF A SAMPLE AND MEASURING METHOD WHICH USES SUCH A SENSOR - The present invention relates to a contact displacement sensor for use in the mechanical measurement of the elongation of a sample by stretching. It further relates to a method for the measurement of the elongation of a sample using such a contact displacement sensor, a system for the measurement of the elongation of a sample using such a contact displacement sensor as well as the use of such a contact displacement sensor. The contact displacement sensor comprises an element with which the sample is contacted. According to the present invention the element is mounted rotatably and disposed in such a way that the tearing of the sample will rotate the element. Due to the element being rotated by the torn sample, only a small amount of energy will be transferred to the contact displacement sensor, which therefore will not be overloaded or damaged. | 04-21-2011 |
20110126635 | APPARATUS FOR TESTING TENSILE STRENGTH UNDER HIGH TEMPERATURE CONDITION AND UNIT FOR MEASURING ELONGATION PROVIDED IN THE SAME - Provided are an apparatus for testing a tensile strength under a high temperature condition and a unit for measuring elongation provided in the same. The apparatus for testing a tensile strength under a high temperature condition includes a base frame part, a test sample loader and a cylinder part connected to the base frame part and applying a tensile force to a test sample, and a heater for forming a high temperature condition to the test sample. The unit for measuring elongation includes a movable frame, a vertical bar, and a measurement head part connected to the vertical bar to measure elongation of the test sample and blocking heat from the heater. Therefore, since a tensile strength and elongation of the test sample can be measured under a high temperature condition, it is possible to recognize deformation characteristics of a material due to a fire and prevent deformation of or damage to the elongation measurement unit even under the high temperature condition, improving durability and reliability of the apparatus. | 06-02-2011 |
20110132100 | SYSTEM AND METHOD TO TEST SPECIMENS - An apparatus and method to test a specimen is disclosed. In one embodiment, the apparatus comprises a housing defining a passage having a length extending along a longitudinal axis, an anvil movable in the passage between a first position and a second position along the longitudinal axis, the anvil comprising a tapered shaft section, an expandable mandrel having an inner surface adapted to fit around a portion of the tapered shaft section and an outer surface adapted to receive a test specimen, and a first block to limit motion of the mandrel. In use, moving the anvil between the first position and the second position causes the mandrel to expand in a circumferential direction, thereby applying a circumferential tension force to the specimen. | 06-09-2011 |
20110138926 | METHOD FOR TESTING THE COATING OF A VANE BASE - A method for testing a coating for blade roots, includes: providing a disk test piece including at least one bearing surface and a blade test piece including at least one bearing surface coated with the coating to be tested, the blade test piece including two test piece halves adapted to be engaged on either side of the disk test piece, and subjecting the blade test piece engaged with the disk test piece to tensile cycles during which the test pieces undergo tensile stress with respect to each other in a tensile direction, the tensile strain being transmitted via the bearing surfaces contacting the blade test piece and the disk test piece. The method allows for very faithful reproduction of the behavior and ageing of the coating and thus allows for accurate evaluation of the quality of the coatings. | 06-16-2011 |
20110271766 | TENSILE BAR MARKING FIXTURE - The present invention provides an apparatus and method to accurately scribe benchmarks into a tensile test sample bar. The apparatus includes a base having a planar surface allowing a tensile test sample bar to rest thereupon. The apparatus further includes a guide having two spaced apart edges separated by a predetermined width. The planar surface of the base further includes a plurality of grid lines to properly align the tensile test sample bar. The base further includes at least one securing member adapted to abut and secure the guide during scribing of the tensile test sample bar. The method includes the steps of aligning a tensile test sample bar on the planar surface having a plurality of grid lines and securing the tensile test sample bar on the planar surface by means of the securing members. The guide then provides for an accurate predetermined width of the spacing of the benchmarks scribed onto the tensile test sample bar. By means of a scribe, the user runs the scribe along each of the edges of the guide and scrapes two benchmarks onto the tensile test sample bar. | 11-10-2011 |
20110314926 | BIAXIAL TENSILE TESTING MACHINE - A biaxial tensile testing machine performing a tensile test of a test piece by stretching the test piece in four directions along two axes perpendicular to each other includes: first and second turntables which are disposed so as to be parallel to each other and relatively rotatable about a rotary axis along the planer direction thereof; first to fourth link mechanisms which are provided at 90° intervals in the circumferential direction about the rotary axis so that one ends of respective members of a pair of members are rotatably connected to each other, and the other ends of respective members of the pair of members are attached across the first and second turntables; and first to fourth test piece holding units which are respectively attached to the first to fourth link mechanisms and hold the test piece. | 12-29-2011 |
20120006126 | Tensile Testing Device - A tensile testing device includes a supporting unit, a cantilever unit and a connecting unit. The supporting unit defines a plurality of mating elements secured thereon for mating with a detected element. The cantilever unit is connected with the detected element by a lead for reading the tension. The connecting unit includes a penal attached on a lateral surface of the supporting unit, a turning plate pivotally installed on a front surface of the panel and rotated around a first axis which is perpendicular to the lateral surface, a first connecting block fastened to a front surface of the turning plate, and a second connecting block of which rear end pivotally connects the first connecting block and turns around a second axis perpendicular to the first axis. | 01-12-2012 |
20120017696 | TENSION MONITORING ARRANGEMENT AND METHOD - Tension monitoring is described using a sensor which may exhibit an offset for which compensation may be provided to produce a zero voltage amplified output or to increase dynamic range. An arrangement determines whether a power reset is responsive to a battery bounce such that an initially-measured system start-up parameter can be retained. The start-up parameter is automatically saved at start-up if the power reset is responsive to a start-up from a shut-down condition. The start-up parameter may be a zero tension amplified output responsive to the sensor offset at zero tension. Protection of a tension data set is provided such that no opportunity for altering the data set is presented prior to transfer of the data set. A housing configuration forms part of an electrical power circuit for providing electrical power to an electronics package from a battery. | 01-26-2012 |
20120024077 | INCLUSION RATING METHOD - An inclusion rating method includes carrying out a tensile test on a test specimen, which is made of a metallic material and charged with a hydrogen, to cause a fracture originating from a nonmetallic inclusion affected by the hydrogen in the test specimen, identifying a type of the nonmetallic inclusion, measuring a size of the nonmetallic inclusion, and evaluating a cleanliness of the metallic material by obtaining a distribution function of the size of the nonmetallic inclusion. | 02-02-2012 |
20120085178 | TENSOMETER FOR SIMULTANEOUSLY EVALUATING POLYMERIZATION STRESSES, SHRINKAGE AND MODULUS DEVELOPMENT - The present invention relates to apparatus and method for evaluating the development of PS during polymerization of dental restorative composites, which includes using a tensometer for measuring deflection of a calibrated cantilever beam induced by PS and calculating PS from the measured deflection. A tensometer according to an embodiment of the present invention can be used to quantify PS at varying beam locations and heights, and determine trend in PS development as a function of beam length. More importantly, in the present invention, the development of polymerization shrinkage and the elastic modulus can be simultaneously obtained in real time. | 04-12-2012 |
20120204654 | TENSILE TEST DEVICE AND METHOD FOR TESTING DEPOSITS ON ELECTRONIC SUBSTRATES - A tensile testing machine has a jaw which includes a unitary ‘H’ section member having a cross piece and two uprights. The cross piece is mounted to a cantilever beam which is supported on the test machine and has force measuring elements. A pneumatic actuator applies tensile forces to the first ends of the uprights via strands to urge the first ends apart. When first ends of the uprights are urged apart, their oppositely disposed second ends are urged together to grip a sample deposit to be pulled off a substrate in a tensile test. In use, the jaws can be moved at speed, in the order of 500 mm/s to pull the deposit off of the substrate. The force required to pull the deposit off the substrate in this tensile test is measured by the force measuring elements on the beam. | 08-16-2012 |
20120234102 | Method and Apparatus for Investigating Mechanical Properties of Soft Materials - A method and apparatus for investigating subsurface properties of sediment, soil, snow, food stuff and other soft materials incorporates a probe head, preferably in the form of a coil spring that functions as a screw thread, which moves into the soil, snow, sediment, food stuff or other soft material, isolates a column of the material and applies tension to that column while measuring the applied force with a force sensor. | 09-20-2012 |
20120240688 | APPARATUS AND METHOD FOR OVER-PEAK LOADING FOR CREEP-RUPTURE TESTING - A method and testing apparatus including first and second load adjusting mechanisms for cyclically applying and reducing first and second tensile loads on a specimen and first and second controllers connected to the first and second load adjusting mechanisms for independently cycling the loads which are additive. Cycling the first and second loads for peak loading and over-peak loading the specimen respectively and controlling first and second loading rates and first and second dwell periods of first and second cycles for peak loading and over-peak loading respectively. The second load adjusting mechanism may include an inflatable over-peak device resting on a plate mounted to a frame of the apparatus. The device includes a hollow housing for supporting the second load, an inflatable bladder within the housing, and a bladder lower portion extending out of an opening at a bottom of the housing when the bladder is inflated. | 09-27-2012 |
20120260740 | STRAP WITH INTEGRATED SENSORS TO MEASURE TENSION - A strap has one or more built-in sensors. The strap may be used, for example, in trucking, for securing loads inside a trailer or on the bed of a trailer. The sensors may wirelessly transmit tension data to a portable electronic device, such as a smart phone. This allows a user to monitor the tension on one or more straps without having to physically examine them. | 10-18-2012 |
20120266686 | MEMS COMPOSITE TRANSDUCER INCLUDING COMPLIANT MEMBRANE - A MEMS composite transducer includes a substrate, a MEMS transducer, and a compliant membrane. Portions of the substrate define an outer boundary of a cavity. A first portion of the MEMS transducing member is anchored to the substrate. A second portion of the MEMS transducing member extends over at least a portion of the cavity and is free to move relative to the cavity. The compliant membrane is positioned in contact with the MEMS transducing member. A first portion of the compliant membrane covers the MEMS transducing member and a second portion of the compliant membrane is anchored to the substrate. | 10-25-2012 |
20130145860 | TESTING APPARATUS - A testing apparatus includes a retaining panel, a screw pole, two securing panels moveably attached to the screw pole, and two mounting members. Each of the two securing panels is slidably attached to the retaining panel. Each of the two mounting member is engaged with each of the two securing panels. The two securing panels are moveable relative to the screw pole for sandwiching an electronic device, and each of the two mounting member is engaged with the screw pole, for prevent the two securing panels from disengaged from the electronic device. | 06-13-2013 |
20130247682 | MICRO/NANO-MECHANICAL TEST SYSTEM EMPLOYING TENSILE TEST HOLDER WITH PUSH-TO-PULL TRANSFORMER - A micromachined or microelectromechanical system (MEMS) based push-to-pull mechanical transformer for tensile testing of micro-to-nanometer scale material samples including a first structure and a second structure. The second structure is coupled to the first structure by at least one flexible element that enables the second structure to be moveable relative to the first structure, wherein the second structure is disposed relative to the first structure so as to form a pulling gap between the first and second structures such that when an external pushing force is applied to and pushes the second structure in a tensile extension direction a width of the pulling gap increases so as to apply a tensile force to a test sample mounted across the pulling gap between a first sample mounting area on the first structure and a second sample mounting area on the second structure. | 09-26-2013 |
20130276546 | METHOD FOR NON-DESTRUCTIVE QUANTITATIVE DETERMINATION OF THE INTERNAL MICROSTRESS OF TYPE II AND/OR TYPE III - The present invention relates to methods for non-destructive quantitative determination of the internal microstresses of type II and/or III which are based on subtraction of the maximum values of the load stress dependency of the maximum Barkhausen noise amplitudes on a test piece before and after hardening of the test piece in specific thermal hardening states. The present invention hence enables independent determination of the internal microstress of type II or III, simultaneous and resolved determination of the internal microstresses of type II and III and also determination of the sum of both types of internal microstresses. | 10-24-2013 |
20130291647 | METHOD FOR DETERMINING FATIGUE STRENGTH OF ENGINE COMPONENTS - A method for determining fatigue strength of engine components, comprising the steps of -providing an engine component, -loading at least part of the component to a level below its tensile strength and measuring its resulting deformation, -determining at least one magnitude on the basis of the load applied and the deformation measured, -providing a predetermined relationship between measured fatigue strength of components and the aforesaid at least one magnitude determined on the basis of the ratio between load applied to engine components and their deformation, -determining the fatigue strength of the engine component provided,on the basis of the at least one magnitude determined and the predetermined relationship. | 11-07-2013 |
20130298693 | METHOD OF FATIGUE TESTING A COMPONENT - A method of fatigue testing a component comprising the steps of machining a channel of predetermined depth and predetermined width in a surface of a component, applying a salt solution into the channel in the surface of the component and heating the component to a suitable temperature to evaporate the solvent from the salt solution to deposit the salt in the channel in the surface of the component, placing the component in an atmosphere containing air and sulphur dioxide at a predetermined temperature for a predetermined period of time to precondition the grain boundaries, and fatigue testing the component. The method is useful for determining the fatigue life of gas turbine engine discs or gas turbine engine rotor blades particularly the firtree shaped disc posts or the firtree shaped rotor blade roots. | 11-14-2013 |
20130327153 | Self-Aligning Test Weight - The present invention relates to test weights for testing the load capacity of a crane. More specifically, the present invention provides a novel system and approach simple and efficient crane load testing using solid weights. Previous methods of testing crane load capacity often require significant time to configure and reconfigure the apparatus. The system of the present invention increases efficiency by significantly reducing this configuration time. The system comprises a plurality of stackable test weights, and a lifting fixture specifically designed for the system. A cantilever structure located on two opposing sides of the test weight enables the lifting fixture to first be quickly secured underneath of said structure, and then lift that particular unit as well as any units surmounting that unit. A novel block lock system integrated into each weight unit enables self-alignment and securing of each weight as it is placed onto the weight stack. | 12-12-2013 |
20130340534 | SYSTEM AND METHOD FOR TESTING A FILLET BOND - A testing apparatus for characterizing a tension strength of a fillet bond of a test specimen may include a lower fixture and an upper fixture. The test specimen may include a skin component bonded to a stiffener component. The lower fixture may maintain the stiffener component in a fixed position. The upper fixture may engage the skin component at a pair of discrete engagement locations on opposite sides of the fillet bond. The upper fixture may be mechanically coupled to a gimbal joint and may substantially isolate the filet bond from asymmetric bending during application of a tension test load to the fillet bond. | 12-26-2013 |
20140026676 | DETECTING ANOMALOUS WEAK BEOL SITES IN A METALLIZATION SYSTEM - Generally, the subject matter herein relates to detecting the presence of weak BEOL sites in a metallization system. One disclosed method includes performing a lateral force test on a pillar bump formed above a metallization system of a semiconductor chip, which includes contacting the pillar bump with a test probe while moving the test probe at a substantially constant speed that is less than approximately 1 μm/sec along a path that is oriented at a substantially non-zero angle relative to a plane of the metallization system. Furthermore, the test probe is moving substantially away from the metallization system so that a force imposed on the pillar bump by the test probe has an upward component that induces a tensile load on the metallization system. The disclosed method also includes determining a behavioral interaction between the pillar bump and the metallization system during the lateral force test. | 01-30-2014 |
20140060200 | METHOD AND SYSTEM FOR DETERMINING CREEP CAPABILITY OF TURBINE COMPONENTS PRIOR TO OPERATION - A method and system for determining creep capability of turbine components is provided. A plurality of turbine components are manufactured from a material having known creep characteristics. Each of the plurality of turbine components is subjected to at least one of tensile stress, centrifugal stress and thermal stress, until a measurable amount of creep is acquired. The turbine components so tested are compared against known creep characteristics for the material used in the components. Components exhibiting an amount of creep greater than a predefined amount of creep will be separated from the plurality of turbine components and not placed into service. | 03-06-2014 |
20140060201 | MEASURING DEVICE AND OPERATION METHOD THEREOF - A measuring device linked to a conveyor for transporting a flexible glass is provided. The measuring device includes a base, a first roller, and at least one second roller. The first roller disposed on the base moves back and forth along a first axis. The second roller disposed on the base moves back and forth along a second axis. The flexible glass enters the conveyor passing through the second roller and the first roller. An operation method of the measuring device is also provided. | 03-06-2014 |
20140157907 | METER BAYONET TOOL AND METHOD OF TESTING TENSION OF METER SOCKET JAWS - A device for testing tension between the jaws of a meter socket in an electric meter base comprising an aluminum blade having dimension similar to a blade of an electric meter designed to fit in the meter socket jaw, the device further comprising a handle having a proximal end and a distal end, the blade rigidly supported within the distal end, the handle having a weight which is distributed along the handle so that sufficient torque is exerted on the blade when the blade is inserted in a meter socket to be tested that the device rotates downwardly if there is insufficient tension. A method of testing tension in a meter socket using the device is also disclosed. | 06-12-2014 |
20140290379 | APPARATUS FOR APPLYING HORIZONTAL LOAD TO UNDERWATER PILE USING GROUND PENETRATION OF SUCTION PILE AND METHOD FOR MEASURING HORIZONTAL RESISTANCE OF UNDERWATER PILE USING THE SAME - A horizontal resistance of an underwater pile is measured using a horizontal load applying apparatus which applies a horizontal load to the underwater pile to measure a horizontal resistance of the underwater pile by changing a direction of a penetration force generated when a suction pile penetrates an underwater ground. | 10-02-2014 |
20140352451 | Apparatus and Method for Load Testing a Coupon - An apparatus for load testing a coupon may include a test frame and a pair of spaced apart load balancing assemblies connected to the test frame, each load balancing assembly of the pair of load balancing assemblies including a load leveling mechanism connected to the test frame and a plurality of spaced apart load plates, each load plate of the plurality of load plates having a first end pivotably connected to the load leveling mechanism and a second end, the second end of each load plate including a friction holder configured to frictionally engage an end of the coupon, wherein at least one load balancing assembly of the pair of load balancing assemblies is movable along an axis of movement with respect to an opposed load balancing assembly to communicate a load to the coupon. | 12-04-2014 |
20150013469 | METHOD FOR CHECKING CERAMIC BALL HEADS FOR HIP-JOINT PROSTHESES - The invention relates to a method for checking ceramic ball heads ( | 01-15-2015 |
20150090047 | Method For Testing A Batch Of Material Used For Obtaining Layers Of Fibres Intended For Manufacturing A Composite Material Component - A method for testing a batch of material used to obtain layers of fibres includes taking a specimen from the batch of material, exerting a tensile force on the specimen, heating the specimen so as to relax the fibres if the specimen contains stresses, after a predetermined period of time, no longer heating and no longer exerting the tensile force on the specimen, measuring a residual extension of the specimen which corresponds to a variation in length of at least a part of the specimen in the direction of the tensile force, before and after the tensile force, and considering the batch of material not to be compliant if the residual extension exceeds a given threshold. | 04-02-2015 |
20150101418 | EQUI-BIAXIAL MEMBRANE STRETCHER - A system for and method of stretching a membrane is provided. The system has a top plate and a bottom plate that are in parallel with each other and a plurality of flexible v trusses. The top plate is configured to move vertically. The v trusses are placed in circle and have arms pointing to the center. There is a clamp for each arm for clamping a membrane. When external force is applied to push the top plate towards the bottom plate, the force bends the trusses, which is translated to the horizontal displacement of the trusses with arms. As the trusses move outwards, the clamped membrane is stretched. | 04-16-2015 |
20150308934 | APPARATUS AND METHOD FOR STRETCH MEASUREMENTS OF TISSUE WEBS - A method includes, using at least one processing device, obtaining position measurements and/or tilt angle measurements associated with a tissue web and identifying a stretch measurement associated with the tissue web using the obtained measurements. Identifying the stretch measurement could include using one or more mathematical formulas to calculate the stretch measurement associated with the tissue web using the obtained measurements. The one or more mathematical formulas could be defined using laboratory stretch values of multiple training webs. Different mathematical formulas can be associated with training webs having different characteristics, and the method may further include selecting at least one of the mathematical formulas based on one or more characteristics of the tissue web. | 10-29-2015 |
20150377755 | APPARATUS FOR TENSILE TEST BY COMPRESSION - A tensile test apparatus that enables tensile tests on test specimens such as metallic pieces shaped into stud/bolt by means of a compression method, wherein the apparatus includes a centering sleeve that enables centering of the tensile test apparatus to fit on the tray of the hydraulic press, a lower grip part that enables gripping of the stud/bolt (test specimen) movably positioned in the center sleeve from one end, and containing the bearing area of the pressure appliers on which the pressure applier applies pressure, an upper grip part that enables gripping of the stud/bolt (test specimen) immovably positioned in the center sleeve from the other end, and containing pressure applier holes within which the pressure applier passes through, and a press ram that transfers the compressive force to the lower grip part via the pressure appliers. | 12-31-2015 |
20150377757 | Small Two bar specimen (TBS) - This innovation is a new type of the small specimens, nun-destructive, creep testing techniques, which are used to obtain creep properties and the remaining life time of the critical high temperature engineering components; when only small amount of material is available for creep testing. The small Two bar specimen (TBS) is suitable for use to obtain both uniaxial creep strain and creep rupture life data, using small material samples. The specimen has a simple geometry and can be conveniently machined and loaded through pin-connections for testing. This innovation is also an efficient testing method to determine the material creep constants which are used in creep models. The small two bar specimen can be made from small material samples removed from the component surfaces and then creep tested. The specimen is loaded using two loading pins under high temperature until the rupture of the specimen. The specimen deformation is recorded throughout the test duration and then the specimen deformation is converted to the corresponding uniaxial date. The converted test result than can be used to obtain the creep strength and to determine the remaining life time for the components. For validation the P91 steel at 600° C. and the modified version of P91 (bar-257) steel at 650° C., were used to validate the small two bar specimen (TBS) testing method. Very good correlation is found between the test results obtained from the small two bar specimen creep tests and from the corresponding uniaxial creep tests specimen. The advantages of the TBS creep test specimen over other small specimens creep testing techniques are also discussed. | 12-31-2015 |
20160103047 | ROCK SPECIMEN AND METHOD FOR TESTING DIRECT TENSILE STRENGTH OF THE SAME - A rock specimen, including a rock body having the shape of a cylinder or a regular square prism. The rock body includes: an upper end face, a first circular groove, a first cylinder, a first circular body, a lower end face, a second circular groove, a second cylinder, and a second circular body. The first circular groove is disposed on the upper end face of the rock body and has a circle center coinciding with the center of the upper end face of the rock body. The second circular groove is disposed on the lower end face of the rock body and has a circle center coinciding with the center of the lower end face of the rock body. The outer diameter of the first circular groove is smaller than the inner diameter of the second circular groove, and the first circular groove and the second circular groove are staggered. | 04-14-2016 |
20160116394 | Ferrofluid droplets as in situ mechanical actuators and rheometers in soft materials and biological matter - Presented herein are methods of using ferrofluid droplets as mechanical actuators that work across length scales of nanometers to millimeters. These novel actuators and methods of using them can be used to determine mechanical properties of soft materials. The actuators allow calculation of a soft material's viscosity, elastic modulus, and other mechanical properties. The methods and devices of the invention may be employed in biological materials, including live cells and tissues, and may be used to profile the mechanical properties of such living materials or to manipulate biological processes therein. | 04-28-2016 |
20160138985 | DEVICE FOR TESTING OUT-OF-PLANE TENSILE STRENGTH AND METHOD OF TESTING OF OUT-OF-PLANE TENSILE STRENGTH OF A LOAD APPLICATION ELEMENT FITTED TO A COMPOSITE SANDWICH PANEL - A device and method for testing out-of-plane tensile strength of a load application element fitted to a composite sandwich panel, including a pull member, a push member, a force distribution member, and a force gauge. The pull member is arranged and configured for applying a tensile strength testing force (T) onto the load application element. The push member is connected to the pull member so that the reaction force (R) of the testing force (T) is distributed on the surface of the composite sandwich panel around the load application element via the force distribution member. The force gauge is configured for measuring the reaction force (R) between the push member and the surface of the composite sandwich panel. | 05-19-2016 |
20160161380 | JIG MOUNTING DEVICE FOR MATERIAL TESTING MACHINE - When mounting a grip | 06-09-2016 |
20160169783 | TENSILE TEST GEOMETRY | 06-16-2016 |