表面技术2017，Vol.46Issue(1)：158-163,6.DOI:10.16490/j.cnki.issn.1001-3660.2017.01.025
基于ABAQUS/FE-SAFE的TC4钛合金板材疲劳寿命仿真与实验
Fatigue Life Simulation and Experiment of TC4 Titanium Alloy Board Based on ABAQUS/FE-SAFE
摘要
Abstract
The work aims to establish a fatigue life prediction model for titanium alloy and verify feasibility of this model in predicting titanium alloy fatigue life after barrel finishing by virtue of experimental study. Influencing law of roughness and re-sidual stress on TC4 titanium alloy fatigue life was studied by virtue of finite element simulation and multivariate regression or-thogonal experiment. Relation equation among fatigue life, roughness and residual stress was simulated, correctness of the si-mulation results and equation were further validated by experiments. After the barrel finishing, the roughness of TC4 board changed fromRz=3.16 toRz=1.69. The initial residual tensile stress turns into compressive residual stress from 50 MPa to-228 MPa. The fatigue life increases from 28,083 to 39,510 times and has increased by 40.6%. Compared with the results of simula-tion, the error is about 5%, testifying feasibility of simulation results. Therefore, a fatigue life prediction model is provided for titanium alloys subject to barrel finishing.关键词
钛合金/表面粗糙度/残余应力/滚磨/疲劳寿命/预测模型Key words
titanium alloy/surface roughness/residual stress/barrel finishing/fatigue life/prediction model分类
矿业与冶金引用本文复制引用
樊荣,李秀红,李文辉,杨胜强..基于ABAQUS/FE-SAFE的TC4钛合金板材疲劳寿命仿真与实验[J].表面技术,2017,46(1):158-163,6.基金项目
国家自然科学基金(51345010) （51345010）
博士点基金(20131402110002) Supported by the National Natural Science Foundation(51345010), Doctor Fund(20131402110002) （20131402110002）
