Coupled thermal/chemical/mechanical modeling of insensitive explosives in thermal environments
- Lawrence Livermore National Laboratory, Livermore, California, 94550 (United States)
The ability to predict the response of a weapon system that contains insensitive explosives to elevated temperatures is important in understanding its safety characteristics. To model such a system at elevated temperatures in a finite element computer code requires a variety of capabilities. These modeling capabilities include thermal diffusion and convection to transport the heat to the explosives in the weapon system, temperature based chemical reaction modeling of the decomposition of the explosive materials, and mechanical modeling of both the metal casing and the unreacted and decomposed explosive. The Chemical TOPAZ code has been developed to model coupled thermal/chemical problems where we do not need to model the mass motion. We have also developed the LYNX2D code, based on PALM2D and Chemical TOPAZ, which is an implicit, two-dimensional coupled thermal/chemical/mechanical finite element model computer code. Some representative examples are shown. {copyright} {ital 1996 American Institute of Physics.}
- OSTI ID:
- 561687
- Report Number(s):
- CONF-950846-; ISSN 0094-243X; TRN: 9716M0028
- Journal Information:
- AIP Conference Proceedings, Vol. 370, Issue 1; Conference: American Physical Society biennial conference on shock compression of condensed matter, Seattle, WA (United States), 13-18 Aug 1995; Other Information: PBD: May 1996
- Country of Publication:
- United States
- Language:
- English
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