CFRP层合板冲击后压缩失效分析数值模拟

复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (5): 12-18.

CFRP层合板冲击后压缩失效分析数值模拟

李要磊, 铁瑛^*, 李成, 孙振辉

郑州大学机械与动力工程学院,郑州450001

收稿日期:2019-08-12 出版日期:2020-05-28 发布日期:2020-05-28
通讯作者: 铁瑛(1978-),女,博士,副教授,主要从事复合材料损伤分析与检测方面的研究, tieying@zzu.edu.cn。
作者简介:李要磊(1991-),男,硕士研究生,主要从事复合材料结构损伤方面的研究。
基金资助:
河南省高等学校青年骨干教师培养计划(2017GGJS003);河南省科技攻关项目(172102210001);国家博士后科学基金面上资助项目(2016M602256)

NUMERICAL SIMULATION OF FAILURE ANALYSIS OF CFRPLAMINATES UNDER COMPRESSION AFTER IMPACT

LI Yao-lei, TIE Ying^*, LI Cheng, SUN Zhen-hui

School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China

Received:2019-08-12 Online:2020-05-28 Published:2020-05-28

摘要/Abstract

摘要： 复合材料层合板的损伤容限是复合材料结构设计的关键因素。针对碳纤维增强复合材料(CFRP)层合板低速冲击损伤和压缩破坏问题,本文基于连续损伤力学和粘结单元模型,在ABAQUS中对两种不同冲击能量下的层合板进行了低速冲击和冲击后压缩仿真分析,并对层内和层间损伤进行了研究,分析了层合板的冲击损伤与压缩失效行为,通过与试验结果进行对比,验证了该模型的有效性。研究结果表明:冲击损伤对层合板的剩余压缩强度有着重要影响,试件的破坏开始于冲击损伤区域,并逐渐扩展到层合板的边缘,压缩力快速下降,层合板最终失效。

关键词: 复合材料, 冲击, 冲击后压缩, 剩余压缩强度, 渐进损伤

Abstract: The damage tolerance of composite laminates is a key factor in the design of composite structures. In order to solve the problem of low velocity impact damage and compression damage of composite (CFRP) laminates, based on continuous damage mechanics and cohesive element model, the low velocity impact and compression of impact simulation analysis of two kinds of composite laminates with different impact energy is carried out in ABAQUS. The intralaminar and interlaminar damage is studied, and the impact damage and compression failure behavior of composite laminates are analyzed. The effectiveness of the model is verified by comparing with the experimental results. The results show that the low velocity impact damage has an important effect on the residual compressive strength of composite laminates. The failure of the specimen begins in the impact damage area and gradually extends to the edge of the composite laminates. The compression force decreases rapidly and the laminates finally fails.

Key words: composite, impact, compression of impact, residual compressive strength, progressive damage

中图分类号:

TB332

李要磊, 铁瑛, 李成, 孙振辉. CFRP层合板冲击后压缩失效分析数值模拟[J]. 复合材料科学与工程, 2020, 0(5): 12-18.

LI Yao-lei, TIE Ying, LI Cheng, SUN Zhen-hui. NUMERICAL SIMULATION OF FAILURE ANALYSIS OF CFRPLAMINATES UNDER COMPRESSION AFTER IMPACT[J]. Composites Science and Engineering, 2020, 0(5): 12-18.

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