Researcher Database

（Last updated : 2024-12-09 11:40:43）　

HE LEI

Department / Course College of Science and Engineering Department of Mechanical Engineering

Title / Position Assistant Professor

Other Affiliations
1.	Research Organization of Science and Technology Research Center of Advanced Materials
2.	Graduate School of Science and Engineering

Academic background
1.	2013/04～2018/09	Doctorial Course │ Graduate School of Engineering │ Graduate School, Division of Engineering │ Hiroshima University │ Completed Doctor
2.	2005/09～2009/06	Mechanical Engineering and Automation │ Faculty of Mechanical Engineering │ China University of Mining and Technology │ Graduated

Business career
1.	2021/04 ～	Assistant professor │ Department of Mechanical Engineering, College of Science & Engineering │ Ritsumeikan University
2.	2019/11 ～ 2021/03	Post doctor │ Department of Materials Science and Engineering, Graduate School of Engineering │ Nagoya university
3.	2018/10 ～ 2019/09	Post doctor │ Department of the Mechanical Science and Engineering, Graduate School of Engineering │ Hiroshima University

Subject of research
1.	Evaluation of fatigue strength in additive manufactured metallic materials under multiaxial loading at elevated temperature

Research summary
Evaluation of fatigue strength in additive manufactured metallic materials under multiaxial loading at elevated temperature Additive manufacture for metallic materials has been widely studied, by utilizing which structures and components which have complex shapes can be manufactured directly. Thus, the cost will be reduced. However, during AM process, defects will form frequently, which have significant effect on strength of structures and components when subjected service loading condition. These loadings are often cyclic multiaxial loading. The study concerns AM materials that used in high temperature condition under above-mentioned loading, therefore, investigation of multiaxial fatigue features for AM materials under such condition is essential.

Present specialized field
Metallic material properties, Structural materials and functional materials, Mechanics of materials and materials

Papers
1.	2025/01	Prediction of fatigue crack propagation behavior in elastic plastic region under block loading for type 316 steel via artificial neural network approach │ International Journal of Fatigue │ (Co-authored)
2.	2024/06/10	Multiaxial creep–fatigue failure mechanism and life prediction of a turbine blade based on a unified numerical solution approach │ (Co-authored)
3.	2024/05	Fatigue behaviors and life evaluation of AISI304 stainless steel under non-proportional multiaxial random loading │ International Journal of Fatigue │ (Co-authored)
4.	2023	Multiaxial creep-fatigue constitutive modeling and damage evaluation for type F82H steel under non-proportional loading conditions │ International Journal of Fatigue │ (Co-authored)
5.	2022/11/23	Fatigue life evaluation model for various austenitic stainless steels at elevated temperatures via alloy features-based machine learning approach │ Fatigue Fract Eng Mater Struct │ (Co-authored)
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Academic conference presentation
1.	2024/12/05	Development of New Techniques for High-Temperature Fatigue Testing Machine Using Miniature Specimens (7th Asian Symposium on Material and Processing 2024 (ASMP2024))
2.	2024/11/05	Enhancement of Hydrogen Pressure Fatigue Testing Method Using Surface Pressure Loading Approach (2024 International Symposium on Structural Integrity (ISSI2024))
3.	2024/11/05	Fatigue Strength Analysis of AISI 304 under Multiaxial Non-proportional Loading in High Cycle Region (2024 International Symposium on Structural Integrity (ISSI2024))
4.	2023/11/06	Fatigue behaviors and life evaluation of AISI 304 under multiaxial non-proportional random loading (13th International Fatigue Congress (FATIGUE2022+1))
5.	2023/10	Alloy Feature Based Machine Learning Approach on Prediction of High Temperature Fatigue Life in Austenitic Stainless Steels (The 11th China-Japan Bilateral Symposium on High Temperature Strength of Materials)
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Subject
1.	理工学特殊研究1
2.	理工学特殊研究2
3.	理工学特殊研究3
4.	理工学特殊研究4