复合材料低速冲击损伤评估数值分析与试验研究

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摘要针对复合材料低速冲击损伤模式复杂多样以及损伤评估时损伤表征参数选取和简化困难的问题，通过编写VUMAT子程序，采用三维Hashin准则和Cohesive界面单元建立了复合材料从低速冲击损伤发生到损伤后压缩破坏的全过程仿真分析模型，用于复合材料低速冲击损伤评估，考虑了复合材料损伤模式的多样性，规避了损伤表征参数的选取和简化问题。分别进行了复合材料低速冲击试验和冲击后压缩试验，从冲击响应、损伤情况和剩余强度三方面将试验结果和仿真结果进行了对比，对比效果良好，表明建立的模型适用于复合材料低速冲击损伤评估。采用该模型进一步对冲击能量和冲击角度对损伤的影响进行了探讨。

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	徐瑀童
	左洪福
	陆晓华
	邵传金
	李鑫

关键词 ：复合材料, 低速冲击, 有限元分析, 冲击响应, 损伤评估

Abstract：A method was established to evaluate low-velocity impact damage of composite material by constructing a simulation analysis model for the whole process of composite material starting from initial low-velocity impact damage to compressive damage through writing the subroutine of VUMAT based on the 3D Hashin criterion and Cohesive interface element, considering the diversity of composite material’s damage modes and avoiding problems of choosing and simplifying damage characterization parameters.Both composite material low-velocity impact tests and compression tests after impact were conducted.The test results were compared with those of simulation in three aspects of impact response, damage level and residual strength.They agreed well with each other.It was shown that the constructed model can effectively evaluate the low-velocity impact damage of composite material.Finally, the effects of impact energy and impact angle on damage were explored using this model.

Key words： composite material low-velocity finite element analysis impact response damage evaluation

收稿日期: 2017-07-27 出版日期: 2019-01-28

引用本文:

徐瑀童，左洪福，陆晓华，邵传金，李鑫. 复合材料低速冲击损伤评估数值分析与试验研究[J]. 振动与冲击, 2019, 38(3): 149-155.
XU Yutong, ZUO Hongfu, LU Xiaohua, SHAO Chuanjin, LI Xin. Numerical analysis and tests for low-velocity impact damage evaluation of composite material. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(3): 149-155.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2019/V38/I3/149

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