RESEARCH ON FATIGUE LIFE ANALYSIS METHOD OF ADDITIVE MANUFACTURING TITANIUM ALLOY STRUCTURE BASED ON FKM STANDARD

GAO Yan; JIN HaiBo; LI YuanJie; XIE SuiJie; CHEN Jin; WANG Yu

doi:10.16579/j.issn.1001.9669.2024.04.030

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RESEARCH ON FATIGUE LIFE ANALYSIS METHOD OF ADDITIVE MANUFACTURING TITANIUM ALLOY STRUCTURE BASED ON FKM STANDARD

Fatigue · Damage · Fracture · Failure Analysis | 更新时间：2024-12-26

- RESEARCH ON FATIGUE LIFE ANALYSIS METHOD OF ADDITIVE MANUFACTURING TITANIUM ALLOY STRUCTURE BASED ON FKM STANDARD
- Journal of Mechanical Strength Vol. 46, Issue 4, Pages: 984-991(2024)
- 作者机构：
  
  1. 南京航空航天大学飞行器先进设计技术国防重点学科实验室
  2. 中国航天科工集团南京航天国器智能装备有限公司
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2024.04.030
  CLC： V214.9
- Published：15 August 2024，
- 稿件说明：
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GAO YAN, JIN HAIBO, LI YUANJIE, et al. RESEARCH ON FATIGUE LIFE ANALYSIS METHOD OF ADDITIVE MANUFACTURING TITANIUM ALLOY STRUCTURE BASED ON FKM STANDARD. [J]. Journal of mechanical strength , 2024, 46(4): 984-991.
DOI：

GAO YAN, JIN HAIBO, LI YUANJIE, et al. RESEARCH ON FATIGUE LIFE ANALYSIS METHOD OF ADDITIVE MANUFACTURING TITANIUM ALLOY STRUCTURE BASED ON FKM STANDARD. [J]. Journal of mechanical strength , 2024, 46(4): 984-991. DOI： 10.16579/j.issn.1001.9669.2024.04.030.

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。

Abstract

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.

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

Keywords

Additive manufacturingTA15 titanium alloyFKM methodNumerical computationFatigue testFatigue life

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