李赞成, 胡功笠, 梁济丰, 张韬. 考虑动态参数的混凝土侵彻工程计算[J]. 力学与实践, 2009, 31(6): 42-45. DOI: 10.6052/1000-0879-2008-539
引用本文: 李赞成, 胡功笠, 梁济丰, 张韬. 考虑动态参数的混凝土侵彻工程计算[J]. 力学与实践, 2009, 31(6): 42-45. DOI: 10.6052/1000-0879-2008-539
LI zancheng, . ENGINEERING CALCULATION OF PENETRATION BY CONCRETE TARGETS WITH DYNAMIC PARAMETERS[J]. MECHANICS IN ENGINEERING, 2009, 31(6): 42-45. DOI: 10.6052/1000-0879-2008-539
Citation: LI zancheng, . ENGINEERING CALCULATION OF PENETRATION BY CONCRETE TARGETS WITH DYNAMIC PARAMETERS[J]. MECHANICS IN ENGINEERING, 2009, 31(6): 42-45. DOI: 10.6052/1000-0879-2008-539

考虑动态参数的混凝土侵彻工程计算

ENGINEERING CALCULATION OF PENETRATION BY CONCRETE TARGETS WITH DYNAMIC PARAMETERS

  • 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-basedpenetration calculation for all types of projectile bodies and theconcrete targets, only the static parameters of the concrete targets aretaken into consideration, which does not account faithfully for thedynamic interaction between the projectiles and the targets. Therefore,the cylindrical-cavity-expansion-theory-based model is modified bytaking account of the dynamic response of the targets under dynamicloads and their strain rate sensitivity. Case studies show that themodified model can produce calculation results more consistent with theexperimental data.

     

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