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Influence of heat transfer types on residual stress distribution of a welded plate using finite element
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Influence of heat transfer types on residual stress distribution of a welded plate using finite element
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Generation of residual stress and structure deformation are the most important problems in the process of structure welding. Residual stresses inside and around the welded joints are harmful for integrity and proper functioning of the welded part. | Influence of heat transfer types on residual stress distribution of a welded plate using finite element Engineering Solid Mechanics 1 2013 91-98 Contents lists available at GrowingScience Engineering Solid Mechanics homepage www.GrowingScience.com esm Influence of heat transfer types on residual stress distribution of a welded plate using finite element A. R. Hosseinzadeh and Mohammad Rezaeiha Department of Mechanical Engineering Bu-Ali Sina University Hamedan Iran ART ICLE INFO ABSTRACT Article history Generation of residual stress and structure deformation are the most important problems in the Received March 20 2013 process of structure welding. Residual stresses inside and around the welded joints are harmful Received in Revised form for integrity and proper functioning of the welded part. Tensile residual stresses near the weld August 21 2013 zone may cause in developing brittle fracture reduction of fatigue life or crack propagation Accepted 3 September 2013 Available online caused by corrosion stresses. Welding residual stresses may even reach the yield stress of the 4 September 2013 part and can affect the thermal or mechanical working properties of it. Different thermal and Keywords mechanical approaches have been developed in the past in order to reduce these residual Radiation effects. Thus both radiative and convective heat transfer methods have important roles in Convection distribution of residual stresses during the welding process. In this study convection and Welding radiation effects on distribution of residual stress inside a welded part have been investigated Finite element for three different cases. In the first case convection heat transfer was ignored and only effect Heat transfer of radiation on residual stress distribution was considered. In the second case just the convection heat transfer applied on the model during the welding process. In another case effects of radiation and convection heat transfer methods were investigated .
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