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弹箭与制导学报 >

2019 , Vol. 39 >Issue 3: 81 - 85,89

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2019.03.019

侵彻过程中弹头形状对 PBX 炸药损伤的影响

  • 石啸海 ,
  • 余春祥 ,
  • 戴开达 ,
  • 崔云霄 ,
  • 陈华
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  • 1 中国工程物理总体工程研究所, 四川绵阳 621000
    2 北京理工大学爆炸科学与技术国家重点实验室, 北京 100081
    3 西北核技术研究所, 西安 710024
    4 96901部队, 北京 100000

石啸海(1992-),男,山东德州人,助理工程师,硕士,研究方向:常规武器战斗部设计。

收稿日期: 2018-05-09

  网络出版日期: 2025-05-20

基金资助

国防基础科研计划

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The Influence of nose shape to Dynamic damage of PBX Charge During the Penetration Process

  • SHI Xiaohai ,
  • YU Chunxiang ,
  • DAI Kaida ,
  • CUI Yunxiao ,
  • CHEN Hua
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  • 1 Institute of System Engineering, CAEP, Sichuan Mianyang 621000, China
    2 State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
    3 Northwest Institute of Nuclear Technology, Xi'an 710024, China
    4 No. 96901 Unit, Beijing 100000, China

Received date: 2018-05-09

  Online published: 2025-05-20

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摘要

侵彻过程中,弹体头部形状会对内部装药的力学性能产生较大影响。文中基于内聚裂纹模型,编写了PBX炸药的自定义材料模型,利用有限元软件LS-DYNA进行了缩比弹侵彻混凝土的数值模拟,计算得到了PBX炸药的损伤演化过程。通过单元裂纹宽度、裂纹含量等关键参数,分析了尖卵形弹头曲径比对装药动态损伤的影响。结果表明,尖卵形弹弹头形状的变化对装药动态损伤影响较大,控制弹头曲径比有利于减小装药损伤。

关键词： 弹头形状; 侵彻; PBX炸药; 动态损伤; 内聚裂纹模型; 数值模拟

本文引用格式

石啸海 , 余春祥 , 戴开达 , 崔云霄 , 陈华 . 侵彻过程中弹头形状对 PBX 炸药损伤的影响[J]. 弹箭与制导学报, 2019 , 39(3) : 81 -85,89 . DOI: 10.15892/j.cnki.djzdxb.2019.03.019

Abstract

Nose shape has significant influence on dynamic mechanical response of charge during penetration. In the authors' work, a user defined material model based on cohesive crack model is constructed to directly simulate the penetration of concrete with LS-DYNA, and 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, controlling caliber-radius-head of warhead is beneficial to reduce charge damage.

Key words： nose shape; penetration; PBX charge; dynamic damage; the cohesive crack model; numerical simulation

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参考文献

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