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A CAD-Based Software Tool for Design and Analysis of Materials under Ballistic Impact

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911NF-07-C-0062
Agency Tracking Number: A074-014-0109
Amount: $99,797.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: A07-T014
Solicitation Number: N/A
Solicitation Year: 2007
Award Year: 2007
Award Start Date (Proposal Award Date): 2007-07-13
Award End Date (Contract End Date): 2008-01-09
Small Business Information
2780 Skypark Drive Suite 400
Torrance, CA 90505
United States
DUNS: 106823607
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: Yes
Principal Investigator
 Akhilesh Jha
 Principal Investigator
 (310) 626-8374
Business Contact
 Zoltan Feher
Title: Manager, Contracts and Pricing
Phone: (310) 626-8384
Research Institution
 Allison Stites
2 Gilmore Hall
Iowa City, CA 90024
United States

 (319) 384-3298
 Nonprofit College or University

In battlefield environments, ballistic impact may result in the failure of military structures and materials, including armor. To improve the reliability and safety of military structures and materials, it is important to study material failure under ballistic impact in the design stage. There are two main failure phenomena related to the material response due to ballistic impact. One is adiabatic shear and the other is spall fracture. Simulation of these two phenomena is challenging due to several reasons such as existence of shock wave, large deflection and, hence, need for continuous updating of mesh, inaccurate thermo-mechanical coupling, and computational instability. Furthermore, there is lack of a user-friendly software tool to model structural response due to such impact. Therefore, the proposed work is geared towards developing a mathematically consistent and robust numerical algorithm that accurately captures these two phenomena using meshfree particle method and integrates the solution algorithm in an easy-to-use CAD-based software framework.

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

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