Residual Property Prediction for Damage Composite Structures

Award Information
Agency: Department of Defense
Branch: Army
Contract: W31P4Q-13-C-0011
Agency Tracking Number: A122-083-0483
Amount: $99,999.00
Phase: Phase I
Program: SBIR
Awards Year: 2012
Solitcitation Year: 2012
Solitcitation Topic Code: A12-083
Solitcitation Number: 2012.2
Small Business Information
Texas Research Institute Austin, Inc.
9063 Bee Caves Road, Austin, TX, -
Duns: 625120902
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Harry Perkinson
 Principal Investigator
 (512) 263-2101
 hperkinson@tri-austin.com
Business Contact
 Monte Fellingham
Title: Contracts Administrator
Phone: (512) 263-2101
Email: mfellingham@tri-austin.com
Research Institution
 Stub
Abstract
To address the U.S. Army"s need to predict the residual strength of composite material laminates that have suffered impacts, Texas Research Institute Austin (TRI/Austin) will integrate a set of new failure criteria into composite material laminate analysis programs that model the damage created by low and high velocity impacts. The failure analysis criteria will be based on properties from limited lamina mechanical tests. The Phase I effort will demonstrate that the new failure criteria can successfully predict the residual strength of laminated plates that have been impacted. For low velocity impacts, the algorithm proposed in the Phase I effort will analytically predict the total delamination area on the specimen for a given impactor geometry, weight, and lamination sequence of the composite. The analysis process can be integrated in spreadsheets or finite element programs. These analysis programs will make the use of composite materials less expensive because the design effort will be reduced, a lower level of testing will be required, and designs will be more efficient - thereby reducing deployment costs. The algorithm developed in the proposed effort will allow a go/no go decision with respect to the suitability of an impacted laminated composite material plate.

* information listed above is at the time of submission.

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