Procurement Summary
Country: USA
Summary: Technology Transfer Opportunity: Large Area Structural Damage Nondestructive Evaluation: Lar-18754-1
Deadline: 22 May 2019
Posting Date: 30 May 2018
Other Information
Notice Type: Tender
TOT Ref.No.: 23742860
Document Ref. No.: TT01270
Competition: ICB
Financier: Self Financed
Purchaser Ownership: -
Tender Value: Refer Document
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Synopsis:
nasa langley research center in hampton, va solicits inquiries from companies interested in obtaining license rights to commercialize, manufacture and market the following technology. License rights may be issued on an exclusive or nonexclusive basis and may include specific fields of use. Nasa provides no funding in conjunction with these potential licenses.
The technology:
scientists at nasa langley research center have developed a methodology to measure damage onset and grow at multiple locations in a composite structure during fatigue loading. The thermography inspection is non-contact and can cover very large areas. The acoustic emission sensors require contact at only the sensor attachment points and can cover large areas. The acoustic emission measurement is very sensitive to damage formation events such as matrix cracking, fiber breaks, and delamination, however the event location is approximate. An infrared camera is able to detect damage growth and location at areas of heating (due to fiber breaks, rubbing of disbond areas and matrix cracks) and thus confirm the acoustic emission measurements. If the loading is cyclic the infrared camera is also able to detect the relative depth of the damage. Combining both technologies helps to reduce false indications, confirm damage growth areas and where ultimate failure will occur. This provides a measurement capability to detect growing damage (location and size) for improved structures testing or during in-service applications. Multiple infrared (ir) cameras and multiple acoustic emission sensors can be employed internally or externally for full coverage of the structure. When significant damage growth is detected, the structure can be taken out of service for repair or for further inspections. This technology has been demonstrated for structures testing. In-situ nde inspections are necessary to provide structural engineers a tool to incrementally control and document damage growth as...
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