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Title: Residual stress evaluation in butt-welded steel plates
Authors: Jeyakumar, M
Christopher, T
Narayanan, R
Rao, B Nageswara
Keywords: ASTM36 Steel
Convection Heat Losses
Finite Element
Radial Heat Flux
Thermal Efficiency
Thermal History
Welding Residual Stresses
2.25Cr1Mo Steel
Issue Date: Dec-2011
Publisher: NISCAIR-CSIR, India
Abstract: Thermo-mechanical finite element analysis has been performed to assess the residual stress in the butt-weld joints of 2.25Cr1Mo low-alloy-ferritic steel plates and ASTM36 steel plates utilizing the commercial software package ANSYS, employing 2D plane stress models. Temperature dependant properties of the materials are specified. The radial heat flux distribution is considered on the top surface of the weldment. Convective and radiative heat losses are taken into account through boundary conditions for the outward flux. The present 2D plane stress analysis results are found to be in good agreement with existing 3D finite element analysis and experimental results. 2D welding simulations are not only reducing the complexity of the problem, but also providing the nature of residual stress in weldments with reasonable accuracy.
Description: 425-434
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Appears in Collections:IJEMS Vol.18(6) [December 2011]

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