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Abstract:
This project focused on two key ways of improving armor design. The first method is by improvement of analysis through the development of testing techniques relevant to high-yield-strength steels under high strain rates and states of stress relevant to armor applications. This effort resulted in a novel method of testing steels under a variety of strain rates in which punch tests are performed in a drop tower. It also resulted in a proposed strain-rate dependent fracture locus. The second way that it contributed to improved armor design is that it investigated the efficacy of multi-steel armor as compared to traditional armor made out of only one grade of steel. It is shown that either a weight savings or gain in performance can be achieved by creating a multi-steel armor of different grades of steels through the thickness.
| Limitations: |
 APPROVED FOR PUBLIC RELEASE |
| Description: |
Final rept. 1 Jul 2006-30 Sep 2009 |
| Pages: |
33 |
| Report Date: |
22 MAR 2011 |
| Contract Number: |
W911NF-06-1-0232 |
| Report Number: |
A908445 |
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