有限要素法による3次元非定常熱伝導問題に関する研究
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概要
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Researches in finite element analyses in the area of two dimensional field problems and elastic-plastic problems under the plane stress and plane strain conditions have been vastly dealt with. However, in order to understand the phenomenon of, out-of-plane deformation resulting from welding or gas heating, it is necessary to clearly define the three dimensional temperature distributions around the moving heat source and the three dimensional thermal stress and strain distributions in the plates. In this paper, as the first step of three dimensional finite element analyses, unstationary heat conduction problems are formulated using a simple tetrahedral element. After the development of the computer program, the present method is applied to some practical examples, and the calculated results are compared with the experimental ones to confirm the usefulness of this method.
- 社団法人日本船舶海洋工学会の論文