| 三维正交机织复合材料弹道侵彻数值模拟 |
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| 引用本文： | 余育苗,王肖均,李永池,王志海.三维正交机织复合材料弹道侵彻数值模拟[J].计算物理,2009,26(6):879-886. |
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| 作者姓名： | 余育苗 王肖均 李永池 王志海 |
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| 作者单位： | 中国科学技术大学近代力学系, 安徽 合肥 230027 |
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| 基金项目： | 国家自然科学基金，国防科技重点实验室基金 |
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| 摘 要： | 利用LS-Dyna有限元软件开展球形弹弹道侵彻Kevlar/乙烯基树脂三维正交机织复合材料的模拟研究,靶板采用含损伤的正交各向异性本构模型和Hashin失效准则,子弹剩余速度的计算值和实验值符合较好,破坏形貌和实验基本一致,并给出侵彻速度时程曲线;结合x方向纤维和面内基体的损伤演化图,分析弹道侵彻过程和材料的破坏模式.
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| 关 键 词： | 弹道 侵彻 三维正交机织 Kevlar LS-Dyna 模拟 |
| 收稿时间： | 2008-06-23 |
| 修稿时间： | 2008-12-03 |
Numerical Simulation of 3D Orthogonal Woven Composite Impacted by a Spherical Bullet |
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| YU Yumiao,WANG Xiaojun,LI Yongchi,WANG Zhihai.Numerical Simulation of 3D Orthogonal Woven Composite Impacted by a Spherical Bullet[J].Chinese Journal of Computational Physics,2009,26(6):879-886. |
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| Authors: | YU Yumiao WANG Xiaojun LI Yongchi WANG Zhihai |
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| Institution: | Department of Modern Mechanics, USTC, Hefei 230027, China |
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| Abstract: | We present numerical simulation of Kevlar/Vinyl 3D orthogonal woven composite impacted by a spherical bullet with LS-Dyna software. Orthogonal constitutive equation with damage tensor and Hashin failure criteria are adopted for the Kevlar/Vinyl target. Time history of penetration velocity and loading of bullet show that steady penetration process and residual velocity agree well with experimental date. The damage modes basically reflect experimental results. Penetration process and damage modes are studied in details by analyzing damage evolution along the x fiber and interface matrix. It shows that the simulations are in good agreement with experiments. |
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| Keywords: | Kevlar Ls-Dyna ballistic penetration 3D orthogonal woven composite Kevlar LS-Dyna simulation |
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