A Constitutive Model for the Shock Ignition of Polymer Bonded Explosives

Youcai Xiao; Yufeng Li; Zhijun Wang; Huiping Zhao; Yi Sun

doi:10.1080/00102202.2018.1505880

A Constitutive Model for the Shock Ignition of Polymer Bonded Explosives

Youcai Xiao^*
, Yufeng Li
, Zhijun Wang
, Huiping Zhao
, Yi Sun

^*Corresponding author for this work

School of Astronautics

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The ignition behavior of polymer bonded explosives (PBXs) is critical to the safety assessments of weapons systems. The shock initiation experiment was designed to study this behavior. This article develops the constitutive model for the shock initiation of the PBX that includes viscoelastic response, statistical fracture mechanics, and an ignition hot spot mechanism. Friction heating on slip planes during plastic flow of explosives is considered as the main mechanism for the formation of hotspots and their ignition. Major results are the use of the ignition model for the PBX. The model was implemented in ABAQUS to predict the ignition of experiments. Computational results were verified by the experiments.

Original language	English
Pages (from-to)	590-604
Number of pages	15
Journal	Combustion Science and Technology
Volume	191
Issue number	3
DOIs	https://doi.org/10.1080/00102202.2018.1505880
State	Published - 4 Mar 2019

Keywords

Constitutive Model
Hot Spot
PBX
Shock Initiation

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10.1080/00102202.2018.1505880

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title = "A Constitutive Model for the Shock Ignition of Polymer Bonded Explosives",

abstract = "The ignition behavior of polymer bonded explosives (PBXs) is critical to the safety assessments of weapons systems. The shock initiation experiment was designed to study this behavior. This article develops the constitutive model for the shock initiation of the PBX that includes viscoelastic response, statistical fracture mechanics, and an ignition hot spot mechanism. Friction heating on slip planes during plastic flow of explosives is considered as the main mechanism for the formation of hotspots and their ignition. Major results are the use of the ignition model for the PBX. The model was implemented in ABAQUS to predict the ignition of experiments. Computational results were verified by the experiments.",

keywords = "Constitutive Model, Hot Spot, PBX, Shock Initiation",

author = "Youcai Xiao and Yufeng Li and Zhijun Wang and Huiping Zhao and Yi Sun",

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T1 - A Constitutive Model for the Shock Ignition of Polymer Bonded Explosives

AU - Xiao, Youcai

AU - Li, Yufeng

AU - Wang, Zhijun

AU - Zhao, Huiping

AU - Sun, Yi

PY - 2019/3/4

Y1 - 2019/3/4

N2 - The ignition behavior of polymer bonded explosives (PBXs) is critical to the safety assessments of weapons systems. The shock initiation experiment was designed to study this behavior. This article develops the constitutive model for the shock initiation of the PBX that includes viscoelastic response, statistical fracture mechanics, and an ignition hot spot mechanism. Friction heating on slip planes during plastic flow of explosives is considered as the main mechanism for the formation of hotspots and their ignition. Major results are the use of the ignition model for the PBX. The model was implemented in ABAQUS to predict the ignition of experiments. Computational results were verified by the experiments.

AB - The ignition behavior of polymer bonded explosives (PBXs) is critical to the safety assessments of weapons systems. The shock initiation experiment was designed to study this behavior. This article develops the constitutive model for the shock initiation of the PBX that includes viscoelastic response, statistical fracture mechanics, and an ignition hot spot mechanism. Friction heating on slip planes during plastic flow of explosives is considered as the main mechanism for the formation of hotspots and their ignition. Major results are the use of the ignition model for the PBX. The model was implemented in ABAQUS to predict the ignition of experiments. Computational results were verified by the experiments.

KW - Constitutive Model

KW - Hot Spot

KW - PBX

KW - Shock Initiation

UR - https://www.scopus.com/pages/publications/85054858904

U2 - 10.1080/00102202.2018.1505880

DO - 10.1080/00102202.2018.1505880

M3 - 文章

AN - SCOPUS:85054858904

SN - 0010-2202

VL - 191

SP - 590

EP - 604

JO - Combustion Science and Technology

JF - Combustion Science and Technology

IS - 3

ER -

A Constitutive Model for the Shock Ignition of Polymer Bonded Explosives

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Keywords

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