平头弹丸正撞击下延性金属靶板的破坏模式

潘建华 文鹤鸣

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平头弹丸正撞击下延性金属靶板的破坏模式

    通讯作者: 文鹤鸣

Failure Modes of Ductile Metal Plates under Normal Impact by Flat-Ended Projectiles

    Corresponding author: WEN He-Ming
  • 摘要: 对延性金属靶板在刚性平头弹丸正撞击下的破坏模式进行了研究。一般而言,延性金属靶板的破坏模式可以分为两种:带有总体变形的局部简单剪切破坏和局部化的绝热剪切冲塞破坏。首先基于Bai-Johnson热塑性本构关系建立了一个局部化的绝热剪切冲塞模型,然后结合描述带有总体变形的局部简单剪切破坏的Wen-Jones模型,找出了两种模型之间转化的临界条件。理论预测与文献中的实验结果吻合得很好。
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出版历程
  • 收稿日期:  2006-07-31
  • 录用日期:  2006-09-14
  • 刊出日期:  2007-06-05

平头弹丸正撞击下延性金属靶板的破坏模式

    通讯作者: 文鹤鸣
  • 1. 中国科学技术大学中科院材料力学行为和设计重点实验室,安徽合肥 230027

摘要: 对延性金属靶板在刚性平头弹丸正撞击下的破坏模式进行了研究。一般而言,延性金属靶板的破坏模式可以分为两种:带有总体变形的局部简单剪切破坏和局部化的绝热剪切冲塞破坏。首先基于Bai-Johnson热塑性本构关系建立了一个局部化的绝热剪切冲塞模型,然后结合描述带有总体变形的局部简单剪切破坏的Wen-Jones模型,找出了两种模型之间转化的临界条件。理论预测与文献中的实验结果吻合得很好。

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