A LASER SPECTROSCOPY TECHNIQUE FOR EVALUATING IN-SITU DEGREDATION OF COMPOSITE MATERIALS

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$54,901.00
Award Year:
1992
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
18465
Agency Tracking Number:
18465
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
2763 Culver Avenue, Dayton, OH, 45429
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr. Bhanu Chelluri
(513) 296-1806
Business Contact:
() -
Research Institute:
n/a
Abstract
ADVANCED MATERIALS ARE BEING IMPLEMENTED IN MANY ARMY SYSTEMS. THESE SYSTEMS REQUIRE NEW NON-DESTRUCTIVE TECHNIQUES FOR ASSESSING IN SERVICE DEGREDATION. SECONDLY, TECHNIQUES ARE REQUIRED TO ASSESS MATERIAL INTEGRITY DURING MANUFACTURING. IAP RESEARCH PROPOSES A NDE TECHNIQUE BASED ON BRILLOUIN SCATTERING THAT IS CAPABLE OF DETERMINING CHANGES IN ELASTIC CONSTANTS OF POLYMER BASED COMPOSITE MATERIALS AND MONOLITHIC COMPOSITE MATERIALS. THE CHANGE IN ELASTIC CONSTANTS CAN THEN BE USED TO PREDICT COMPONENT MECHANICAL PROPERTY DEGREDATION CAUSED BY THERMAL OR LOW VELOCITY COMPACT DAMAGE. IN THE CASE OF PROCESSING FEEDBACK THE TECHNIQUE WILL ALLOW FOR THE IN-SITU EVALUATION OF THE EFFECT OF PROCESSING VARIABLES ON MECHANICAL PROPERTIES.

* information listed above is at the time of submission.

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