Researcher Database

（Last updated : 2024-09-06 17:17:49）　

GAO CHONG

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.	2019/04～2022/03	Doctorial Course │ Department of Mechanical Systems Engineering │ Graduate School, Division of Engineering │ Hiroshima University │ Completed Doctor of Engineering
2.	2017/04～2019/03	Master Course │ Department of Mechanical Systems Engineering │ Graduate School, Division of Engineering │ Hiroshima University │ Completed Master of Engineering
3.	2011/09～2015/06	Machine Design and Manufacturing and Automation │ School of Mechanical Engineering and Electronic Information │ China University of Geoscience │ Graduated Bachelor of Engineering

Business career
1.	2022/04/01 ～	Assistant Professor │ │ Ritsumeikan University

Subject of research
1.	An evaluation of unknown thermo-mechanical behavior in materials at hyper-high strain rate

Research summary
An evaluation of unknown thermo-mechanical behavior in materials at hyper-high strain rate The impact of space debris, meteorite, etc. will lead a serious damage on the spacecraft. So that, to design and select the structural materials for spacecraft, its thermo-mechanical behavior at such a high impact velocity must be evaluated by an appropriate experimental method. Unfortunately, the stress-strain curve used for evaluating the mechanical behavior of materials at over 105 s-1 of the strain rate is difficult to measure because of the limitation of the experiment method. Additionally, the experimental method for measuring the stress-strain curve at 103 s-1 of the strain rate is established. When selecting the materials applied to aerospace field, the Taylor impact test which can achieve 105 s-1 of the strain rate must be considered. However, in this case, several times of tests is requested to obtain an entire stress-strain curve. Furthermore, the inevitable obvious temperature rises due to extremely high-speed impact is not focused on. In this study, the Taylor impact test is expanded by introducing the stress bar, high-speed camera and temperature measurement system into the apparatus. The thermo-mechanical behavior of material is attempted to measure by only single test.

Present specialized field
Mechanics of materials and materials, Aerospace engineering (Keyword：Mechanics of materials and materials,　Aerospace engineering)

Papers
1.	2024/12	Impact force measurement by in-plane piezoelectricity of polyvinylidene fluoride films │ International Journal of Mechanical Sciences │ 283,pp.109653 (Co-authored)
2.	2024/10	Application of the size effect law to the determination of R-curves for transverse cracking in polymer matrix composite laminates using single edge notched bend specimens │ Engineering Fracture Mechanics │ 309,pp.11425 (Co-authored)
3.	2024/02/02	An experimental evaluation on rate sensitivity of fracture toughness in sheet specimens made of SUS304 metastable austenitic stainless steel │ Engineering Fracture Mechanics │ (Co-authored)
4.	2024/02	A DIC-based Taylor impact test by measuring inertia force from acceleration distribution to obtain uniaxial　stress–strain behavior of pure aluminum │ International Journal of Impact Engineering │ 184,pp.104834 (Co-authored)

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