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Thermoshearographic Methodology for Strain Mapping

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-11-C-2197
Agency Tracking Number: F093-177-0048
Amount: $736,252.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: AF093-177
Solicitation Number: 2009.3
Solicitation Year: 2009
Award Year: 2011
Award Start Date (Proposal Award Date): 2011-09-15
Award End Date (Contract End Date): N/A
Small Business Information
Information Technologies Division 20600 Gramercy Place,Bldg. 100
Torrance, CA -
United States
DUNS: 153865951
HUBZone Owned: No
Woman Owned: Yes
Socially and Economically Disadvantaged: No
Principal Investigator
 Alexander Naumov
 Group Leader
 (310) 320-3088
Business Contact
 Gordon Drew
Title: Chief Financial Officer
Phone: (310) 320-3088
Research Institution

ABSTRACT: In response to the Air Force need for a methodology to accurately map strain distributions in hot composite structures, Physical Optics Corporation (POC) proposes to complete the development of a new ThermoShearographic methodology for Strain Mapping (TSSM), based on dynamic monitoring of in-plane strain variation and temperature distribution over an anisotropic specimen surface. In Phase I, POC successfully demonstrated the feasibility of the proposed methodology by assembling and testing the prototype, which accurately measures strain distribution on composite coupon surfaces under fatigue and thermal load. The results were used by Materials Research & Design, Inc. in their predictive model to calculate thermal and mechanical strain distributions. In Phase II, POC will optimize the Phase I prototype, advancing it to a full-scale TSSM system with the integrated predictive model, allowing accurate mapping of strain and temperature distribution in a hot, mechanically loaded composite structure and estimating damage progression with a low degree of uncertainty. TSSM capabilities will be demonstrated in inspection of composite structures under conditions experienced in modern gas turbine engines. The tested Phase II system will be delivered to the Air Force for further evaluation. By the end of Phase II we plan to reach technical readiness level (TRL)-4/5. BENEFIT: Beyond quality assurance and quality control of composite structures for military aircraft, where the benefits of this methodology are obvious, TSSM will offer benefits in inspection of composite materials and parts in land-based propulsion and power-generation systems, particularly in the automotive and boating industries.

* Information listed above is at the time of submission. *

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