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首页 > 过刊浏览>2019年第42卷第1期 >64-69. DOI:10.11835/j.issn.1000-582X.2019.01.006
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弹丸侵彻混凝土靶板破坏过程的近场动力学模拟
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中图分类号:

Q313

基金项目:

国家自然科学基金资助项目（51709194，11672101）；国家重点研发计划资助项目（2017YFC1502603）；江苏省自然科学基金项目（BK20151493）。


Peridynamics modeling for projectile penetrating into concrete
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    摘要:

    为了精确描述弹丸侵彻混凝土靶板的破坏过程及其演化规律，文中采用基于非局部相互作用思想与空间积分方程建模的键型近场动力学（peridynamics，PD）方法，改进了近场动力学本构力核函数，对弹丸侵彻下混凝土靶板的动态破坏过程进行仿真分析。模拟了弹丸侵彻下混凝土靶板破坏的全过程，探讨了不同冲击速度下混凝土靶板的破坏特征，较好地描述了其损伤累积和渐进破坏过程。

    Abstract:

    Peridynamics(PD) is a continuum theory based on the idea of non-local interaction and spatial integral equation modelling. In order to accurately describe the failure process and evolution of the projectile penetrating the concrete target plate, the non-local PD model is proposed. The modified PD constitutive model is used to simulate the dynamic failure process of the projectile penetrating the concrete target plate and the failure characteristics of concrete target plate under different impact velocities are discussed. The process of concrete damage accumulation and progressive failure is obtained.

    参考文献
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沈峰,章青,顾鑫.弹丸侵彻混凝土靶板破坏过程的近场动力学模拟[J].重庆大学学报,2019,42(1):64-69.

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  • 收稿日期:2018-06-13
  • 在线发布日期: 2019-01-16
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