Boundary Element Inverse Analysis for Stress Separation in Thermoelastic Stress Analysis

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概要

• 論文の詳細を見る

• Thermoelastic stress analysis(TSA) is a technique for measuring stresses through temperature changes induced by the thermoelastic effect of elastic bodies. Unfortunately, TSA can only provide the sum of the principal stresses. In this paper, the stress separation problem to determine individual stress components from the sum of the principal stresses is considered. The problem is divided into two parts:(1)an inverse problem to estimate unknown boundary values from the sum of the principal stresses inside the body, and(2)a direct problem to determine the stress components inside the body based on the estimated boundary values. This two-step approach is formulated and solved by BEM. It is found that the combination of Tikhonov regularization with supplementary data and Hansen's L-curve method is effective for attaining an accurate result of stress separation.

• 一般社団法人日本機械学会の論文
• 1999-10-15

著者

• KISHIMOTO Kikuo

  Department of Mechanical and Control Engineering, Tokyo Institute of Technology

• Kishimoto Kikuo

  Department Of Mechanical And Control Engineering Tokyo Institute Of Technology

• INOUE Hirotsugu

  Department of Mehanical and Control Engineering, Tokyo Institute of Technology

• Shibuya T

  Department Of Mechanical And Intelligent Systems Engineering Tokyo Institute Of Technology

• Shibuya T

  National Inst. Multimedia Education Chiba Jpn

• SHIBUYA Toshikazu

  Department of Mechanical and Intelligent Systems Eng., Tokyo Institute of Technology

• HAYABUSA Keisuke

  Department of Mechanical Engineering for Production, Graduate School, Tokyo Institute of Technology

• Inoue Hirotsugu

  Department Of Mechanical And Intelligent Systems Engineering Tokyo Institute Of Technology

• Hayabusa Keisuke

  Ebara Research Co. Ltd.

• Shibuya Toshikazu

  Department Of Engineering Tokyo Institute Of Technology

• INOUE Hirotsugu

  Department of Mechanical and Control Engineering, Tokyo Institute of Technology

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