Critical Assessment of Temperature Distribution in Submerged Arc Welding Process
TLDR
In this article, an attempt has been made to model the temperature distribution during submerged arc welding process using finite element modeling technique implemented in ANSYS v12 In the present analysis, heat source is assumed to be double-ellipsoidal with Gaussian volumetric heat generation Furthermore, variation of material properties with temperature and both convective and radiant heat loss boundary condition have been considered The predicted temperature distribution is then validated against the experimental results obtained by thermal imaging of the welded plate, and they are found to be in a good agreementAbstract:
Temperature distribution during any welding process holds the key for understanding and predicting several important welding attributes like heat affected zone, microstructure of the weld, residual stress, and distortion during welding The accuracy of the analytical approaches for modeling temperature distribution during welding has been constrained by oversimplified assumptions regarding boundary conditions and material properties In this paper, an attempt has been made to model the temperature distribution during submerged arc welding process using finite element modeling technique implemented in ANSYS v12 In the present analysis, heat source is assumed to be double-ellipsoidal with Gaussian volumetric heat generation Furthermore, variation of material properties with temperature and both convective and radiant heat loss boundary condition have been considered The predicted temperature distribution is then validated against the experimental results obtained by thermal imaging of the welded plate, and they are found to be in a good agreementread more
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A new finite element model for welding heat sources
TL;DR: In this article, a double ellipsoidal geometry is proposed to model both shallow penetration arc welding processes and the deeper penetration laser and electron beam processes, which can be easily changed to handle non-axisymmetric cases such as strip electrodes or dissimilar metal joining.
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Comments on calculation of temperature in fire-exposed bare steel structures in prEN 1993-1-2: Eurocode 3—design of steel structures—Part 1–2: general rules—structural fire design
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Design of Steel Structures
TL;DR: In this article, the authors analyze and design stability and strength of flat-plate buildings, including tension members, compression members, beam girders, and metal and fasteners.