Researcher Database

（Last updated : 2024-03-21 10:52:49）

HE LEI

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

Title / Position Assistant Professor

Other Affiliations
1.	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.	2023	Multiaxial creep-fatigue constitutive modeling and damage evaluation for type F82H steel under non-proportional loading conditions │ International Journal of Fatigue │ (Co-authored)
2.	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)
3.	2022/07	Establishment of unified creep–fatigue life prediction under various temperatures and investigation of failure physical mechanism for Type 304 stainless steel │ Fatigue Fract Eng Mater Struct │ (Co-authored)
4.	2022/06/06	On multiaxial creep–fatigue considering the non-proportional loading effect: Constitutive modeling, deformation mechanism, and life prediction │ International Journal of Plasticity │ (Co-authored)
5.	2022	Machine-learning-based investigation into the effect of defect/inclusion on fatigue behavior in steels │ (Co-authored)
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Academic conference presentation
1.	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)
2.	2023/10	An Issue of Indentation Creep Test for Obtaining Uniaxial Constitutive Relationship for Mod.9Cr-1Mo Steel (The 11th China-Japan Bilateral Symposium on High Temperature Strength of Materials)
3.	2023/10	Challenge of Miniaturization of Specimen Size for Fatigue Test at High Temperature (The 11th China-Japan Bilateral Symposium on High Temperature Strength of Materials)
4.	2023/10	Creep Deformation Behavior and Microstructure Evolution of Dual Phase Stainless Steel (The 11th China-Japan Bilateral Symposium on High Temperature Strength of Materials)
5.	2022/11/25	High Temperature Fatigue Life Evaluation for Austenitic Stainless Steels by Physicochemical-based Machine Learning Approach
Display All（17）