计算物理 ›› 2002, Vol. 19 ›› Issue (2): 137-141.

• 论文 • 上一篇    下一篇

高速碰撞中有关混凝土与沙岩的破损问题的数值研究

曹菊珍, 李恩征, 王政   

  1. 北京应用物理与计算数学研究所, 北京 100088
  • 收稿日期:2000-06-20 修回日期:2000-12-16 出版日期:2002-03-25 发布日期:2002-03-25
  • 作者简介:曹菊玲(1947-),女,丄海,研究员,主要从事爆炸力学研究.
  • 基金资助:
    中国工程物理研究院基金(990341)资助项目

NUMERICAL STUDY ON THE DAMAGING OF CONCRETE AND ROCK IN THE HIGH VELOCITY IMPACT

CAO Ju-zhen, LI En-zheng, WANG Zheng   

  1. Institute of Applied Physics and Computational Mathematics, Beijing 100088, P R China
  • Received:2000-06-20 Revised:2000-12-16 Online:2002-03-25 Published:2002-03-25

摘要: 对混凝土、沙岩两种介质[1,2]给出了带有损伤变量的本构方程及参数,将这些关系编入二维弹塑性有限元程序(LTZ-2D),然后利用程序数值模拟了射弹、动能弹对混凝土、沙岩靶的侵彻,并将数值模拟出的图象与实验结果进行了比较.

关键词: 混凝土与沙岩, 断裂损伤, 数值模拟

Abstract: The constitutive model and its parameters of concrete and rock with damaging variables are given referring to[1,2],and coded into a 2-D elastic-plastic finite element program named LTZ-2D.With this program,the problem of projectile and kinetic bullet penetrating concrete and rock targets is numerically simulated.The results of simulation are compared with those of experiments.

Key words: concrete and rock, fracture and damage, numerical simulation

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