弹头形状对侵彻中装药动态损伤影响的数值模拟

Kai Da Dai; Peng Wan Chen; Xiao Hai Shi

doi:10.15918/j.tbit1001-0645.2018.s2.024

弹头形状对侵彻中装药动态损伤影响的数值模拟

Translated title of the contribution: Numerical Simulation of the Effect of Nose Shape on Dynamic Damage of PBX Charge During the Penetration Process

Kai Da Dai
, Peng Wan Chen
, Xiao Hai Shi

Beijing Institute of Technology

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

1 Citation (Scopus)

Abstract

Nose shape has significant influence on dynamic mechanical response of charge during penetration. An user defined material model based on cohesive crack model is constructed to directly simulate the penetration of concrete with LS-DYNA. The damage evolution process of charge is calculated. The influence of caliber-radius-head of ogival nose warhead is analyzed by element crack width and volume fraction of visible crack. The results show that the variation of nose shape for ogival nose warhead has significant influence on dynamic damage, and controlling caliber-radius-head of warhead is beneficial to reduce charge damage.

Translated title of the contribution	Numerical Simulation of the Effect of Nose Shape on Dynamic Damage of PBX Charge During the Penetration Process
Original language	Chinese (Traditional)
Pages (from-to)	100-104
Number of pages	5
Journal	Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume	38
DOIs	https://doi.org/10.15918/j.tbit1001-0645.2018.s2.024
Publication status	Published - 1 Dec 2018

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title = "弹头形状对侵彻中装药动态损伤影响的数值模拟",

abstract = "Nose shape has significant influence on dynamic mechanical response of charge during penetration. An user defined material model based on cohesive crack model is constructed to directly simulate the penetration of concrete with LS-DYNA. The damage evolution process of charge is calculated. The influence of caliber-radius-head of ogival nose warhead is analyzed by element crack width and volume fraction of visible crack. The results show that the variation of nose shape for ogival nose warhead has significant influence on dynamic damage, and controlling caliber-radius-head of warhead is beneficial to reduce charge damage.",

keywords = "Cohesive crack model, Dynamic damage, Nose shape, Numerical simulation, PBX charge",

author = "Dai, \{Kai Da\} and Chen, \{Peng Wan\} and Shi, \{Xiao Hai\}",

year = "2018",

month = dec,

day = "1",

doi = "10.15918/j.tbit1001-0645.2018.s2.024",

language = "繁体中文",

volume = "38",

pages = "100--104",

journal = "Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology",

issn = "1001-0645",

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T1 - 弹头形状对侵彻中装药动态损伤影响的数值模拟

AU - Dai, Kai Da

AU - Chen, Peng Wan

AU - Shi, Xiao Hai

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Nose shape has significant influence on dynamic mechanical response of charge during penetration. An user defined material model based on cohesive crack model is constructed to directly simulate the penetration of concrete with LS-DYNA. The damage evolution process of charge is calculated. The influence of caliber-radius-head of ogival nose warhead is analyzed by element crack width and volume fraction of visible crack. The results show that the variation of nose shape for ogival nose warhead has significant influence on dynamic damage, and controlling caliber-radius-head of warhead is beneficial to reduce charge damage.

AB - Nose shape has significant influence on dynamic mechanical response of charge during penetration. An user defined material model based on cohesive crack model is constructed to directly simulate the penetration of concrete with LS-DYNA. The damage evolution process of charge is calculated. The influence of caliber-radius-head of ogival nose warhead is analyzed by element crack width and volume fraction of visible crack. The results show that the variation of nose shape for ogival nose warhead has significant influence on dynamic damage, and controlling caliber-radius-head of warhead is beneficial to reduce charge damage.

KW - Cohesive crack model

KW - Dynamic damage

KW - Nose shape

KW - Numerical simulation

KW - PBX charge

UR - https://www.scopus.com/pages/publications/85066075289

U2 - 10.15918/j.tbit1001-0645.2018.s2.024

DO - 10.15918/j.tbit1001-0645.2018.s2.024

M3 - 文章

AN - SCOPUS:85066075289

SN - 1001-0645

VL - 38

SP - 100

EP - 104

JO - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology

JF - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology

ER -

弹头形状对侵彻中装药动态损伤影响的数值模拟

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