SiCf/TC17复合材料单轴拉伸性能的数值模拟分析  

Numerical Simulation Analysis of Uniaxial Tensile Properties of SiCf/TC17 Composites

作　　者：于成龙 黄浩 付雪松[1] 王敏涓 陈国清[1] 周文龙[1] Yu Chenglong;Huang Hao;Fu Xuesong;Wang Minjuan;Chen Guoqing;Zhou Wenlong(School of Materials Science and Engineering Dalian University of Technology,Dalian 116024;Laboratory of Titanium Alloys,Beijing Institute of Aeronautical materials,Beijing 110095)

机构地区：[1]大连理工大学材料科学与工程学院,大连116024 [2]中航发北京航空材料研究院钛合金研究所,北京110095

出　　处：《航天制造技术》2023年第1期56-62,共7页Aerospace Manufacturing Technology

摘　　要：使用ABAQUS有限元软件结合内聚力模型(CZM)建立了SiCf/TC17复合材料模型,研究了热残余应力场在复合材料的分布规律以及热残余应力对复合材料纵横向拉伸的影响。分析了纵向拉伸过程中基体屈服对复合材料的影响以及热残余应力对复合材料性能的影响。分析了复合材料横向拉伸的失效机制,以及等效应力在基体中的再分配,发现界面径向压应力能够减缓界面的脱粘。A model with Cohesive model(CZM)is created by ABAQUS to investigate the distribution of thermal residual stress field and the effect of residual stress on the longitudinal and transverse tensile properties for SiCf/TC17 composite.The effect of matrix yield during longitude tension of composite and the effect of thermal residual stress on the properties of composites were analyzed.Transverse tensile failure mechanism of composite and the redistribution of equivalent stress in the matrix were analyzed,It is found that the radial compressive stress at the interface can slow down the interfacial debonding.

关 键 词：钛基复合材料 SIC纤维 残余应力 纵横向拉伸 有限元模拟 

分 类 号：V257[一般工业技术—材料科学与工程]