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力学与实践 ›› 2009, Vol. 31 ›› Issue (6): 42-45.doi: 10.6052/1000-0879-lxysj2008-539

• 应用研究 • 上一篇    下一篇

考虑动态参数的混凝土侵彻工程计算

李赞成,胡功笠,梁济丰,张韬   

  1. 徐州空军学院机场工程系
  • 收稿日期:2008-11-12 修回日期:2009-04-09 出版日期:2009-12-10 发布日期:2011-09-06
  • 通讯作者: 李赞成 E-mail:lizancheng2003@yahoo.com.cn

ENGINEERING CALCULATION OF PENETRATION BY CONCRETE TARGETS WITH DYNAMIC PARAMETERS

zancheng LI, , ,   

  • Received:2008-11-12 Revised:2009-04-09 Online:2009-12-10 Published:2011-09-06
  • Contact: zancheng LI E-mail:lizancheng2003@yahoo.com.cn

摘要: 基于圆柱形空腔膨胀理论的侵彻计算采用的混凝土靶材料参数均为混凝土静态力学特 性参数,这与弹靶相互作用的动态事实不相符. 考虑混凝土材料应变率敏感性和在动载作用下 的动态响应,对圆柱形空腔膨胀模型进行修正,并结合实例进行验算,修正模型理论计算结 果与实验结果符合性更好.

Abstract: In the cylindrical-cavity-expansion-theory-based penetration calculation for all types of projectile bodies and the concrete targets, only the static parameters of the concrete targets are taken into consideration, which does not account faithfully for the dynamic interaction between the projectiles and the targets. Therefore, the cylindrical-cavity-expansion-theory-based model is modified by taking account of the dynamic response of the targets under dynamic loads and their strain rate sensitivity. Case studies show that the modified model can produce calculation results more consistent with the experimental data.