Numerical simulation of PBX explosive ignition in steven test

Dan Zhu Ma; Peng Wan Chen; Kai Da Dai; Yong Tian; Jing Ming Li

Numerical simulation of PBX explosive ignition in steven test

Dan Zhu Ma^*, Peng Wan Chen, Kai Da Dai, Yong Tian, Jing Ming Li

^*Corresponding author for this work

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

Abstract

An impact ignition threshold criterion based on the pressure and the plastic strain rate was assumed. Numerical simulation of mechanical response of PBX 9501 was performed using LS-DYNA. The experimental values of pressure and cover plate dent depth were used to verify the constitutive equation and computation models. The threshold criterion for low-velocity impact ignition of PBX 9501 is (p ε̇)_ig=0.001 56 GPa/μs, where p is the pressure and ε̇ is the plastic strain rate. (p ε̇)_ig can be used to predict the ignition velocities of PBX 9501s with different sizes under the different constraint conditions. The predicted results agree well with the experimental results.

Original language	English
Pages (from-to)	54-56
Number of pages	3
Journal	Binggong Xuebao/Acta Armamentarii
Volume	33
Issue number	SUPPL.1
Publication status	Published - May 2012

Keywords

Explosion mechanics
Ignition criterion
Impact velocity prediction
Numerical simulation
Steven test

Cite this

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title = "Numerical simulation of PBX explosive ignition in steven test",

abstract = "An impact ignition threshold criterion based on the pressure and the plastic strain rate was assumed. Numerical simulation of mechanical response of PBX 9501 was performed using LS-DYNA. The experimental values of pressure and cover plate dent depth were used to verify the constitutive equation and computation models. The threshold criterion for low-velocity impact ignition of PBX 9501 is (p {\.ε})ig=0.001 56 GPa/μs, where p is the pressure and {\.ε} is the plastic strain rate. (p {\.ε})ig can be used to predict the ignition velocities of PBX 9501s with different sizes under the different constraint conditions. The predicted results agree well with the experimental results.",

keywords = "Explosion mechanics, Ignition criterion, Impact velocity prediction, Numerical simulation, Steven test",

author = "Ma, {Dan Zhu} and Chen, {Peng Wan} and Dai, {Kai Da} and Yong Tian and Li, {Jing Ming}",

year = "2012",

month = may,

language = "English",

volume = "33",

pages = "54--56",

journal = "Binggong Xuebao/Acta Armamentarii",

issn = "1000-1093",

publisher = "China Ordnance Society",

number = "SUPPL.1",

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TY - JOUR

T1 - Numerical simulation of PBX explosive ignition in steven test

AU - Ma, Dan Zhu

AU - Chen, Peng Wan

AU - Dai, Kai Da

AU - Tian, Yong

AU - Li, Jing Ming

PY - 2012/5

Y1 - 2012/5

N2 - An impact ignition threshold criterion based on the pressure and the plastic strain rate was assumed. Numerical simulation of mechanical response of PBX 9501 was performed using LS-DYNA. The experimental values of pressure and cover plate dent depth were used to verify the constitutive equation and computation models. The threshold criterion for low-velocity impact ignition of PBX 9501 is (p ε̇)ig=0.001 56 GPa/μs, where p is the pressure and ε̇ is the plastic strain rate. (p ε̇)ig can be used to predict the ignition velocities of PBX 9501s with different sizes under the different constraint conditions. The predicted results agree well with the experimental results.

AB - An impact ignition threshold criterion based on the pressure and the plastic strain rate was assumed. Numerical simulation of mechanical response of PBX 9501 was performed using LS-DYNA. The experimental values of pressure and cover plate dent depth were used to verify the constitutive equation and computation models. The threshold criterion for low-velocity impact ignition of PBX 9501 is (p ε̇)ig=0.001 56 GPa/μs, where p is the pressure and ε̇ is the plastic strain rate. (p ε̇)ig can be used to predict the ignition velocities of PBX 9501s with different sizes under the different constraint conditions. The predicted results agree well with the experimental results.

KW - Explosion mechanics

KW - Ignition criterion

KW - Impact velocity prediction

KW - Numerical simulation

KW - Steven test

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M3 - Article

AN - SCOPUS:84871037408

SN - 1000-1093

VL - 33

SP - 54

EP - 56

JO - Binggong Xuebao/Acta Armamentarii

JF - Binggong Xuebao/Acta Armamentarii

IS - SUPPL.1

ER -

Numerical simulation of PBX explosive ignition in steven test

Abstract

Keywords

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