Shock-induced spall in copper: the effects of anisotropy, temperature, loading pulse and defect
- Los Alamos National Laboratory
- USTC
Shock-induced spall in Cu is investigated with molecular dynamics simulations. We examine spallation in initially perfect crystals and defective solids with grain boundaries (columnar bicrystals), stacking faults or vacancies, as well as the effect of temperature and loading pulses. Spall in single crystal Cu is anisotropic, and defects and high temperature may reduce the spall strength. Taylor-wave (triangular shock-release wave) loading is explored in comparison with square wave shock loading.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 991255
- Report Number(s):
- LA-UR-09-04786; LA-UR-09-4786; TRN: US201021%%133
- Country of Publication:
- United States
- Language:
- English
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