溶接学会論文集
Online ISSN : 2434-8252
Print ISSN : 0288-4771
有限要素法による鋼ガス圧接時及び熱間せん断時の変形と変力の解析
鋼ガス圧接部ふくらみ熱間せん断による非破壊検査(第3報)
大石橋 宏次赤間 誠上山 且芳
著者情報
ジャーナル フリー

1996 年 14 巻 2 号 p. 435-442

詳細
抄録

In the previous report, an approximate model which describes the mechanism of bulge removal by hot shearing was presented. But the details of stress distribution and plastic deformation mechanism in this process which have influence on the occurrence of a linear defect could not be known experimentally because of its high temperature. In this report, the problem of determining temperature and stress histories, stress distributions during gas pressure welding of steel and subsequent hot shearing is solved on the basis of coupled thermal and mechanical energy balances using the finite element method. A nonlinear heat transfer analysis and a thermo-elastic-plastic stress analysis are performed simultaneously taking into account the temperature dependence of the material properties, heat losses due to convection and radiation, and phase transformation.
Tensile stress is confirmed to be generated just under the edge in hot shearing which opens the joint when the welding condition is not suitable. The computational results are compared with experimental ones, showing good correlation between them.

著者関連情報
© 一般社団法人 溶接学会
前の記事 次の記事
feedback
Top