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Numerical analysis of welded joint treated by explosion shock waves |
| GUAN Jianjun1, CHEN Huaining2 |
| 1.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China; Mechanical Engineering College, Liaoning University of Petroleum and Chemical Technology, Fushun 113001, China; 2.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China |
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Abstract This paper focuses on the simulation of welding residual stresses and the action of explosion shock waves on welding residual stresses. Firstly, the distributions of welding temperature field and residual stress on a butt joint were numerically simulated with the sequentially coupled method. Secondly, the effect of explosion shock waves, produced by plastic strip-like explosive, on welding residual stress distribution was predicted with coupled Lagrange-ALE algorithm. It was implicated that explosion treatment could effectively reduce welding residual stresses. The simulation work lays a foundation for the further research on the rule of explosion treatment s effect on welding residual stresses and the factors that may influence it.
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Issue Date: 05 June 2007
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