Failure criteria of unidirectional carbon fiber reinforced polymer composites informed by a computational micromechanics model

被引:110
作者
Sun, Qingping [1 ]
Zhou, Guowei [2 ,3 ]
Meng, Zhaoxu [4 ]
Guo, Haiding [1 ]
Chen, Zhangxing [5 ]
Liu, Haolong [1 ]
Kang, Hongtae [6 ]
Keten, Sinan [4 ]
Su, Xuming [3 ]
机构
[1] Nanjing Univ Aeronaut & Astronaut, Jiangsu Prov Key Lab Aerosp Power Syst, Coll Energy & Power Engn, Nanjing, Jiangsu, Peoples R China
[2] Ohio State Univ, Coll Engn, Columbus, OH 43212 USA
[3] Ford Motor Co, Dept Mat Mfg, Dearborn, MI 48124 USA
[4] Northwestern Univ, Dept Civil & Environm Engn, 2145 Sheridan Rd, Evanston, IL 60208 USA
[5] Chongqing Univ, State Key Lab Mech Transmiss, Chongqing, Peoples R China
[6] Univ Michigan, Coll Engn & Comp Sci, Dearborn, MI 48128 USA
关键词
Carbon fiber-reinforced polymer composites; Computational micromechanics model; Representative volume element; Failure envelope; Failure criteria; COMBINED TRANSVERSE COMPRESSION; FINITE-ELEMENT MODEL; PART I; LONGITUDINAL COMPRESSION; PREDICTIVE CAPABILITIES; MECHANICAL-PROPERTIES; BOUNDARY-CONDITIONS; MATRIX FAILURE; BEHAVIOR; SHEAR;
D O I
10.1016/j.compscitech.2019.01.012
中图分类号
TB33 [复合材料];
学科分类号
摘要
Failure prediction for carbon fiber reinforced polymer (CFRP) composites has been a longstanding challenge. In this study, we address this challenge by first applying a well-established computational micromechanics model based on representative volume element to predict the failure envelopes of unidirectional (UD) CFRP composites. Then, these failure envelopes are compared with the classical failure criteria. We have evaluated the performances of these failure criteria and identified the aspects for further improvement in their accuracies for the UD CFRP composites studied herein. Based on the failure mechanisms from computational analyses and the comparisons between predicted failure envelopes and classical failure criteria, a new set of homogenized failure criteria is proposed. The newly proposed failure criteria show significant improvement according to our computational and experimental results. Furthermore, we have compared the proposed failure criteria with existing experimental data and computational results available in the literature for different types of composites. Good agreements are generally observed.
引用
收藏
页码:81 / 95
页数:15
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