摘要
基于德国机械工程研究委员会编制的FKM方法,根据已有的试验数据结合有限元仿真计算得到增材制造TA15钛合金材料的相关参数,对增材制造TA15钛合金角盒结构和机加工TA15钛合金角盒结构进行疲劳寿命计算,并对增材制造钛合金角盒结构的疲劳寿命计算结果进行数值分析和试验验证。结果表明,基于FKM方法计算得到的增材制造钛合金角盒结构的疲劳寿命与数值计算结果相比,对数误差在5%以内,与试验寿命相比,对数误差大多在10%以内,基于FKM方法计算得到增材制造钛合金角盒的疲劳寿命高于机加工钛合金角盒结构的疲劳寿命。
Based on FKM method prepared by the Geman Mechanical Engineering Committee,the constants of TA15 titanium alloy by additive manufacturing were obtained according to the existing test data and finite element simulation calculation,and the fatigue life of additive manufacturing and machining TA15 titanium alloy angle support were calculated.The fatigue life calculation results of TA15 titanium alloy angle support by additive manufacturing were verified by numerical calculation and tests.The results show that the logarithm error between the fatigue life calculated by FKM method and the numerical calculation result is within 5%,and the logarithm error between the fatigue life calculated by FKM method and the test life is within 10%.The fatigue life of additive manufacturing titanium alloy angle support is higher than that of machining titanium alloy angle support based on FKM method.
作者
高焱
金海波
李远杰
谢隋杰
陈晋
王宇
GAO Yan;JIN HaiBo;LI YuanJie;XIE SuiJie;CHEN Jin;WANG Yu(Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;CASIC Nanjing Aerospace Sinoequip Co.,Ltd.,Nanjing 210032,China)
出处
《机械强度》
CAS
CSCD
北大核心
2024年第4期984-991,共8页
Journal of Mechanical Strength
基金
航空科学基金项目(20180952007)资助。
关键词
增材制造
TA15
钛合金
FKM
方法
数值计算
疲劳试验
疲劳寿命
Additive manufacturing
TA15 titanium alloy
FKM method
Numerical computation
Fatigue test
Fatigue life
