Patent application number | Description | Published |
20080223152 | METHODS AND SYSTEMS FOR USING ACTIVE SURFACE COVERINGS FOR STRUCTURAL ASSESSMENT AND MONITORING - A system for structural assessment is described that comprises a plurality of sensors and a surface covering for at least a portion of a structure. The sensors are arranged in a pattern and attached to the surface covering. The surface covering is attached to a surface of a structure, and the sensors are configured to provide signals relating to the integrity of the structure to an external device. | 09-18-2008 |
20100227105 | PREDICTABLE BONDED REWORK OF COMPOSITE STRUCTURES - A patch for reworking an inconsistent area of a composite structure comprises a composite laminate patch and a bond joint between the patch and the structure. The bond joint including at least first and second regions respectively having differing properties for releasing strain energy around the inconsistent area at different rates. | 09-09-2010 |
20100227106 | PREDICTABLE BONDED REWORK OF COMPOSITE STRUCTURES USING TAILORED PATCHES - A patch for reworking an inconsistent area in a composite structure includes a composite laminate patch and a layer of adhesive for bonding the laminate patch to the composite structure. The laminate patch has at least first and second regions for releasing strain energy around the inconsistent area respectively at different rates. | 09-09-2010 |
20100227117 | TAPERED PATCH FOR PREDICTABLE BONDED REWORK OF COMPOSITE STRUCTURES - A patch for reworking an inconsistent area in a composite structure includes a composite laminate patch adapted to cover the inconsistent area and bonded to the structure by a layer of adhesive. The patch includes a plurality of composite plies having a tapered cross section, and at least first and second regions respectively having differing fracture toughnesses. | 09-09-2010 |
20100233424 | COMPOSITE STRUCTURES EMPLOYING QUASI-ISOTROPIC LAMINATES - A composite laminate comprises a stack of unidirectional fiber reinforced composite plies arranged in a fiber orientation sequence providing the laminate with quasi-isotropic properties. | 09-16-2010 |
20100250148 | DETERMINISTIC NDE SYSTEM AND METHOD FOR COMPOSITE DAMAGE ASSESSMENT AND REPAIR - A deterministic non-destructive evaluation system for composite damage assessment and repair includes structure of interest, non-destructive evaluation data and strength test data obtained on the structure of interest, finite element analysis performed on a structural model modified by the non-destructive data and the strength test data, a strength-to-indication correlation based on the finite element analysis and deterministic non-destructive evaluation predictions and recommendations based on the strength-to-indication correlation. | 09-30-2010 |
20110177309 | OBLONG CONFIGURATION FOR BONDED PATCH - A patch for a structure has a rework area with an inconsistency formed therein. The patch comprises a patch body having at least two regions including a fail-safe region and a safe-life region encompassing the fail-safe region. The safe-life region has a mode I interlaminar fracture toughness that is less than the mode I interlaminar fracture toughness of the fail-safe region. | 07-21-2011 |
20130260077 | TAPERED PATCH FOR PREDICTABLE BONDED REWORK OF COMPOSITE STRUCTURES - A patch for reworking an inconsistent area in a composite structure includes a composite laminate patch adapted to cover the inconsistent area and bonded to the structure by a layer of adhesive. The patch includes a plurality of composite plies having a tapered cross section, and at least first and second regions respectively having differing fracture toughnesses. | 10-03-2013 |
20130337214 | PREDICTABLE BONDED REWORK OF COMPOSITE STRUCTURES USING TAILORED PATCHES - A patch for reworking an inconsistent area in a composite structure includes a composite laminate patch and a layer of adhesive for bonding the laminate patch to the composite structure. The laminate patch has at least first and second regions for releasing strain energy around the inconsistent area respectively at different rates. | 12-19-2013 |
20140020221 | BONDED PATCH HAVING MULTIPLE ZONES OF FRACTURE TOUGHNESS - A composite laminate patch for reworking an inconsistent area in a structure has inner and outer control regions possessing differing interlaminar fracture toughnesses for controlling the advance of a disbond in the patch. One or more separation zones in the patch between the control regions aids in diffusing the fracture energy of the disbond as the disbond advances from the inner region to the outer region. | 01-23-2014 |
20140076481 | Discretely Tailored Multi-Zone Bondline for Fail-Safe Structural Repair - A repair patch for reworking an inconsistent area of a composite structure includes a patch body adapted to cover the inconsistent area and having a first patch region, a second patch region outside the first patch region and a first separation zone between the first patch region and the second patch region, with the first patch region, the first separation zone and the second patch region having increasing interlaminar fracture toughness from a center to an edge of the patch body; and a layer of adhesive for bonding the patch body to the composite structure. | 03-20-2014 |
20140322491 | OBLONG CONFIGURATION FOR BONDED PATCH - A patch for a structure has a rework area with an inconsistency formed therein. The patch comprises a patch body having at least two regions including a fail-safe region and a safe-life region encompassing the fail-safe region. The safe-life region has a mode I interlaminar fracture toughness that is less than the mode I interlaminar fracture toughness of the fail-safe region. | 10-30-2014 |