河北科技大学学报2025，Vol.46Issue(5)：533-541,9.DOI:10.7535/hbkd.2025yx05006
SiCf/Ti3Al复合材料单轴拉伸残余应力及界面失效数值模拟
Numerical simulation of uniaxial tensile residual stress and interface failure of SiCf/Ti3Al composite materials
摘要
Abstract
In order to investigate the influence of thermal residual stress on the tensile properties of SiCf/Ti3Al composites generated in uniaxial tension,a three-dimensional mesoscale model including fibers,matrix,and interface was constructed by using ABAQUS finite element simulation in combination with cohesive zone model(CZM)to analyze the stress distribution,crack propagation and interface failure of the composites.The results show that,in transverse stretching,interface debonding is the main failure mechanism and the redistribution of equivalent forces within the matrix plays a key role in the overall performance;In longitudinal stretching,the thermal residual stress leads to non-uniform distribution of the stress field and affects the yielding of the matrix,while the radial compressive stress at the interface effectively slows down the debonding of the interface and retards the failure of the material.The results reveal the influence mechanisms of thermal residual stress and interface properties on the transverse and longitudinal tensile properties of SiCf/Ti3Al composites,which provide theoretical support for optimizing the design and performance enhancement of fibre-reinforced metal matrix composites.关键词
金属基复合材料/钛铝基复合材料/残余应力/SiC纤维/界面失效模式/纵横向拉伸/有限元模拟Key words
metal matrix composites/titanium matrix composites/residual stress/SiC fibers/interface failure mode/longi-tudinal and transverse stretching/finite element simulation分类
通用工业技术引用本文复制引用
李全新,苏孺,王守财,康杰,马海坤,张子阔,黄浩,王敏涓,吴大勇,黎旺..SiCf/Ti3Al复合材料单轴拉伸残余应力及界面失效数值模拟[J].河北科技大学学报,2025,46(5):533-541,9.基金项目
国家自然科学基金(52271100) （52271100）
中央引导地方科技发展资金项目(246Z1020G) （246Z1020G）
