Report
Role of shear instability in ballistic penetration (Final Report)
Dec 1989
Abstract
The role of adiabatic shear bands in penetration mechanics is described and an experimental technique is described by means of which conditions for the incipient nucleation and subsequent growth of such localized bands may be determined. There is abundant experimental evidence to indicate that ballistic results are strongly influenced by the mechanical properties of the materials involved. Following a discussion of the role played by adiabatic shear phenomena in ballistic penetration, an experimental procedure is outlined for obtaining quantitative characteristics for specific materials. A computer simulation of the experimental procedure incorporated work hardening and thermal softening effects and is shown to reproduce experiments in which adiabatic shear bands form, as well as several in which they do not occur. From such supplementary simulations, numerical values for important mechanical properties can be extracted for further application. (GRA)
Metrics
1 Record Views
Details
- Title
- Role of shear instability in ballistic penetration (Final Report)
- Creators
- JOHNF MescallHarry Rogers
- Publisher
- U.S. ARMY MATERIALS TECHNOLOGY LABORATORY
- Resource Type
- Report
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Other Identifier
- 991022064710404721