基于MAT_58模型的碳纤维增强复合材料仿真参数捕捉与验证  

Parameters calibration and validation of carbon fiber reinforced composite based on*MAT_58 model

作　　者：邱星瀚 宋通 张赛[2] 王付胜[1] 孟宪明[2] 陈亚军[1] QIU Xinghan;SONG Tong;ZHANG Sai;WANG Fusheng;MENG Xianming;CHEN Yajun(Sino-European Institute of Aviation Engineering,Civil Aviation University of China,Tianjin 300300,China;China Automotive Technology and Research Center Co.,Ltd.,Tianjin 300300,China)

机构地区：[1]中国民航大学中欧航空工程师学院,天津300300 [2]中国汽车技术研究中心有限公司,天津300300

出　　处：《复合材料科学与工程》2025年第3期54-62,105,共10页Composites Science and Engineering

基　　金：国家重点研发计划(2019YFE0124100)。

摘　　要：预测纤维增强复合材料层压板的失效行为在工程应用中具有重要价值。利用万能电子试验机、冲击试验机,对一种碳纤维增强复合材料层压板在LS-DYNA有限元分析软件中的*MAT_58模型材料参数进行捕捉和验证。结果表明:单单元测试明确了*MAT_58模型材料参数在本构模型中的物理意义;通过双边缺口拉伸试验结合Bazant裂纹带模型计算出四边形单元尺寸为2 mm时的等效失效应变ERODS为0.56;落锤冲击试验峰值力对ERODS高度敏感,试验与仿真力-位移曲线吻合良好,峰值力误差最小为5.22%,验证了ERODS参数捕捉的有效性;纤维方向强度对于落锤冲击过程中的力学响应行为影响最大,面内剪切强度影响次之,基体方向强度影响最小。It is of vital importance to predict the failure behavior of fiber reinforced composite laminates in engineering applications.In this paper,the parameters of material model*MAT_58 in LS-DYNA of a type of carbon fiber reinforced composite laminate were calibrated and validated,by using a universal electronic test machine and a drop-weight impact test machine.The results show that:the physical meaning of*MAT_58 parameters are specified by single element test;the effective failure strain is equals to 0.56 for 2 mm rectangular element by the double edge notched tension experiments combined with the Bazant crack band model;the peak force of the drop-weight impact experiment is highly sensitive to ERODS,the force-displacement curve of the experimental and simulation curves is in good agreement,with a minimum peak force error of 5.22%,which proves the effectiveness of ERODS;the fiber direction strength has the strongest effect on the mechanical response behavior during drop-weight impact,followed by in-plane shear strength and the matrix direction strength.

关 键 词：碳纤维增强复合材料 有限元仿真 单单元测试 面内断裂韧性 冲击响应 

分 类 号：TB332[一般工业技术—材料科学与工程]