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Joining Structure Analysis Lab
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The lab uses numerical simulation to analyze the phenomena that arise in thermal processes such as welding and joining.
AboutAbout the lab
Reading coupled phenomena in thermal processing through computational mechanics
The lab studies multiphysics phenomena that arise in thermal processes such as welding, joining and metal additive manufacturing (AM).
It conducts research and education on numerical simulation technologies based on mathematical modeling, AI and computational mechanics.
It also works on applied research in shipbuilding and large structures, such as thermal distortion prediction using AI, machine learning and digital twins.
Building on methods such as the idealized explicit FEM, the lab aims to predict the deformation, residual stress and structural integrity of joined structures with high accuracy, and to realize highly efficient and highly reliable smart manufacturing technologies.
The lab belongs to the Joining Evaluation Division of the Joining and Welding Research Institute, Osaka University.
Key terms
- Multiphysics
- A situation in which multiple physical phenomena, such as heat, material flow, microstructure and mechanics, occur while affecting one another
- Idealized explicit FEM
- A fast method for thermal elastic-plastic analysis developed in this lab
- Residual stress
- Stress that remains inside a material after thermal processing such as welding. Along with distortion and cracking, it is a target of prediction
ResearchResearch themes
The lab targets multiphysics phenomena in thermal processes such as welding, joining and metal AM, in which heat, material flow, microstructure and mechanics are coupled. Using numerical simulation based on mathematical modeling, AI and computational mechanics, it develops advanced analysis technologies that support next-generation digital manufacturing.
View More ↗MembersFaculty
- ProfessorMasakazu Shibahara
- Associate ProfessorKazuki Ikushima
- Project Associate ProfessorR. GADALLAH
- Project Associate ProfessorYukio Takemoto
- Project LecturerShintaro Maeda
- Project Assistant ProfessorTakuya Kato
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Tandem welding torch 002” Pipimaru / CC BY-SA 3.0 (cropped)
- Related lab (Joining Structural Design Lab): “New end posts” Beta Engineering / Public domain (cropped)
- Related lab (Joining Microstructure Evaluation Lab): “Fillet joint friction stir welding (FSW) equipment for welding the fillet joint of an electric vehicle frame” Hwanjin Kim,1 Kwangjin Lee,2Jaewoong Kim,3 Changyeon Lee,4 Yoonchul Jung5 and Sungwook Kang,6* 1 Department of Mechanical Engineering, Gyeongsang National University, Jinju 52828, Korea 2 Carbon Materials Application R&D Group, Korea Institute of Industrial Technology, Jeonju 54853, Korea 3 Smart Mobility Materials and Components R&D Group, Korea Institute of Industrial Technology, Gwangju 61012, Korea 4 Technical Center: Daejoo Kores Co., LTD., Wanju 55316, Korea 5 Dongnam Division, Korea Institute of Industrial Technology, Busan 46938, Korea 6 Precision Mechanical Process and Control R&D Group, Korea Institute of Industrial Technology, Jinju 52845, Korea * Author to whom correspondence should be addressed. / CC BY 4.0 (cropped)
- Related lab (Welding Mechanism Lab): “Arc welding ( )” US Air Force from USA / Public domain (cropped)
- Related lab (Laser Processing Lab): “Laser welding of the pipeline” Barbara Nasiłowska / CC BY 4.0 (cropped)
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