锥头弹丸撞击下FRP层合板的侵彻与穿透的理论研究

覃悦; 文鹤鸣; 何涛

doi:10.11858/gywlxb.2007.02.002

锥头弹丸撞击下FRP层合板的侵彻与穿透的理论研究

doi: 10.11858/gywlxb.2007.02.002

中国科学技术大学材料力学行为和设计国家重点实验室，安徽合肥 230027

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通讯作者:
文鹤鸣

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出版历程
- 收稿日期: 2006-05-15
- 修回日期: 2006-09-28
- 刊出日期: 2007-06-05

Theoretical Study on the Penetration and Perforation of FRP Laminates Struck by Cone-Nosed Projectiles

CAS Key Laboratory for Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230027, China

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Corresponding author: WEN He-Ming

摘要

摘要: 研究了锥头弹丸撞击下FRP层合板的侵彻和穿透性能，在局部化破坏模式假定的基础上改进了Wen提出的能量简化分析模型。改进模型仍假设弹体在侵彻过程中表面所受靶体的平均压力由靶体材料弹塑性变形所引起的静态阻力和速度效应引起的动阻力两部分组成，认为侵彻过程中靶体对弹体的阻力不再是一个常数，而是侵彻速度的函数。并由此推导出了锥头弹丸在侵彻和贯穿过程中的侵彻深度、残余速度和弹道极限速度的公式。理论预测与实验结果符合得很好。
- FRP层合板 /
- 侵彻 /
- 穿透 /
- 弹道极限 /
- 锥头弹丸
Abstract: The penetration and perforation of FRP laminates struck transversely by cone-nosed projectiles has been theoretically investigated. Based upon the assumption that the deformation is localized, the mean pressure offered by the laminate targets to resist the projectiles can be decomposed into two parts: one part is a cohesive quasi-static resistive pressure due to the elastic-plastic deformation of the laminate materials and the other is a dynamic resistive pressure arising from velocity effects. Furthermore, Wen's model has been developed by assuming that the resistance of the FRP laminate is no longer a constant, but a function of penetration velocity. Equations are obtained for predicting the depth of penetration, the residual velocity and the ballistic limit in the case of perforation. It transpires that the theoretical predictions are in good correlation with available experimental data in terms of penetration depth, residual velocity and ballistic limit.
- FRP laminates /
- penetration /
- perforation /
- ballistic velocity /
- conical-nosed projectile

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参考文献(13)

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