Publisher： Trans Tech Publications
E-ISSN： 1662-8985|2015|1095|693-697
ISSN： 1022-6680
Source： Advanced Materials Research, Vol.2015, Iss.1095, 2015-04, pp. : 693-697
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Abstract
A 60mm Q345 rigid thick plate with V groove welding connection was modeled in order to simulate the welding residual stress by finite element method. Both element birth and death technique and double ellipse heat source model were introduced to simulate the welding process. The welding thermal field and residual stress of thick steel plate were analyzed by finite element simulation software ANSYS.Then the thermal field and residual stress distribution were visually demonstrated. The result shows that the thermal field shaped like a spindle during welding period and the residual stress at the mid-section in lateral, longitudinal and thickness direction of the welding joint is lower than the stress at the surface of the welding connection.
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