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Title: Modeling energy dissipation induced by quasi-static compaction of granular HMX

Abstract

A simple extension of a conventional two-phase continuum model of Deflagration-to-Detonation Transition (DDT) in energetic granular material is given to account for energy dissipation induced by quasi-static compaction. To this end, the conventional model equations are supplemented by a relaxation equation that accounts for irreversible changes in solid volume fraction due to intergranular friction, plastic deformation of granules, and granule fracture. The proposed model, which is consistent with the Second Law of Thermodynamics for a two-phase mixture, is demonstrated by applying it to the quasi-static compaction of granular HMX. The model predicts results commensurate with experimental data including stress relaxation and substantial dissipation; such phenomena have not been previously accounted for by two-phase DDT models. {copyright} {ital 1998 American Institute of Physics.}

Authors:
; ; ;  [1]
  1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
Publication Date:
Research Org.:
Los Alamos National Laboratory
Sponsoring Org.:
USDOE
OSTI Identifier:
295465
Report Number(s):
CONF-970707-
Journal ID: APCPCS; ISSN 0094-243X; TRN: 9902M0023
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 429; Journal Issue: 1; Conference: Meeting of the topical group on shock compression of condensed matter of the American Physical Society, Amherst, MA (United States), 27 Jul - 1 Aug 1997; Other Information: PBD: Jul 1998
Country of Publication:
United States
Language:
English
Subject:
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; EXPLOSIONS; STRESS RELAXATION; CHEMICAL EXPLOSIVES; GRANULAR MATERIALS; COMPACTING; DYNAMIC LOADS; ENERGY LOSSES; THERMODYNAMICS

Citation Formats

Gonthier, K A, Menikoff, R, Son, S F, and Asay, B W. Modeling energy dissipation induced by quasi-static compaction of granular HMX. United States: N. p., 1998. Web. doi:10.1063/1.55649.
Gonthier, K A, Menikoff, R, Son, S F, & Asay, B W. Modeling energy dissipation induced by quasi-static compaction of granular HMX. United States. https://doi.org/10.1063/1.55649
Gonthier, K A, Menikoff, R, Son, S F, and Asay, B W. Wed . "Modeling energy dissipation induced by quasi-static compaction of granular HMX". United States. https://doi.org/10.1063/1.55649.
@article{osti_295465,
title = {Modeling energy dissipation induced by quasi-static compaction of granular HMX},
author = {Gonthier, K A and Menikoff, R and Son, S F and Asay, B W},
abstractNote = {A simple extension of a conventional two-phase continuum model of Deflagration-to-Detonation Transition (DDT) in energetic granular material is given to account for energy dissipation induced by quasi-static compaction. To this end, the conventional model equations are supplemented by a relaxation equation that accounts for irreversible changes in solid volume fraction due to intergranular friction, plastic deformation of granules, and granule fracture. The proposed model, which is consistent with the Second Law of Thermodynamics for a two-phase mixture, is demonstrated by applying it to the quasi-static compaction of granular HMX. The model predicts results commensurate with experimental data including stress relaxation and substantial dissipation; such phenomena have not been previously accounted for by two-phase DDT models. {copyright} {ital 1998 American Institute of Physics.}},
doi = {10.1063/1.55649},
url = {https://www.osti.gov/biblio/295465}, journal = {AIP Conference Proceedings},
number = 1,
volume = 429,
place = {United States},
year = {1998},
month = {7}
}