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Title: A Coupled Damage and Reaction Model for Simulating Energetic Material Response to Impact Hazards

Abstract

The Baer-Nunziato multiphase reactive theory for a granulated bed of energetic material is extended to allow for dynamic damage processes, that generate new surfaces as well as porosity. The Second Law of Thermodynamics is employed to constrain the constitutive forms of the mass, momentum, and energy exchange functions as well as those for the mechanical damage model ensuring that the models will be dissipative. The focus here is on the constitutive forms of the exchange functions. The mechanical constitutive modeling is discussed in a companion paper. The mechanical damage model provides dynamic surface area and porosity information needed by the exchange functions to compute combustion rates and interphase momentum and energy exchange rates. The models are implemented in the CTH shock physics code and used to simulate delayed detonations due to impacts in a bed of granulated energetic material and an undamaged cylindrical sample.

Authors:
; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (US); Sandia National Labs., Livermore, CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
13992
Report Number(s):
SAND99-2321C
TRN: AH200135%%531
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: American Physical Society, Snowbird, UT (US), 06/27/1999--07/02/1999; Other Information: PBD: 1 Sep 1999
Country of Publication:
United States
Language:
English
Subject:
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; CHEMICAL EXPLOSIVES; ENERGY TRANSFER; POROSITY; SURFACE AREA; GRANULAR MATERIALS; MASS TRANSFER; MOMENTUM TRANSFER; MATHEMATICAL MODELS; COMBUSTION KINETICS; IMPACT SHOCK

Citation Formats

BAER,MELVIN R., DRUMHELLER,D.S., and MATHESON,E.R. A Coupled Damage and Reaction Model for Simulating Energetic Material Response to Impact Hazards. United States: N. p., 1999. Web.
BAER,MELVIN R., DRUMHELLER,D.S., & MATHESON,E.R. A Coupled Damage and Reaction Model for Simulating Energetic Material Response to Impact Hazards. United States.
BAER,MELVIN R., DRUMHELLER,D.S., and MATHESON,E.R. Wed . "A Coupled Damage and Reaction Model for Simulating Energetic Material Response to Impact Hazards". United States. https://www.osti.gov/servlets/purl/13992.
@article{osti_13992,
title = {A Coupled Damage and Reaction Model for Simulating Energetic Material Response to Impact Hazards},
author = {BAER,MELVIN R. and DRUMHELLER,D.S. and MATHESON,E.R.},
abstractNote = {The Baer-Nunziato multiphase reactive theory for a granulated bed of energetic material is extended to allow for dynamic damage processes, that generate new surfaces as well as porosity. The Second Law of Thermodynamics is employed to constrain the constitutive forms of the mass, momentum, and energy exchange functions as well as those for the mechanical damage model ensuring that the models will be dissipative. The focus here is on the constitutive forms of the exchange functions. The mechanical constitutive modeling is discussed in a companion paper. The mechanical damage model provides dynamic surface area and porosity information needed by the exchange functions to compute combustion rates and interphase momentum and energy exchange rates. The models are implemented in the CTH shock physics code and used to simulate delayed detonations due to impacts in a bed of granulated energetic material and an undamaged cylindrical sample.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {9}
}

Conference:
Other availability
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