MICRO/MACRO MECHANICS FOR COMPOSITE FRACTURE CRITERIA

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$497,000.00
Award Year:
1988
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
5861
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Flow Research Co
21414 - 68th Ave S, Kent, WA, 98032
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr Alan Mueller
(206) 872-8500
Business Contact:
() -
Research Institution:
n/a
Abstract
ALTHOUGH STRONG IN THE LAMINATE PLANE, COMPOSITES EXHIBIT WEAK INTERLAMINAR PROPERTIES. AS A RESULT, DELAMINATIONS CAN OCCUR DURING MANUFACTURING OR IN SERVICE ENVIRONMENTS. THIS PROPOSAL ADDRESSES A NEED FOR FRACTURE CRITERIA MODELS FOR BOTH ORGANIC AND METAL MATRIX COMPOSITES. A MAJOR OBJECTIVE IS TO ANALYZE AND COMPARE FRACTURES IN MICROSCOPIC AND MACROSCOPIC GEOMETRIES USING A SINGULAR FINITE ELEMENT METHOD. THE RESULTS OF THIS ANALYSIS WILL BE USED TO DEVELOP A MIXED-MODE, MACROSCOPIC FRACTURE CRITERIA ANALYTICAL MODEL THAT INCORPORATES MICROSCOPIC TOUGHENING MECHANISMS.

* information listed above is at the time of submission.

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