Papers by Author: Aniruddha Ghosh

Abstract: The determination of the temperature distribution of submerged arc-welded plates is essential when designing submerged arc-welded joints. The key role for the change of weld-bead geometry dimension, thermal stress, residual stress, tensile stress, hardness, etc., is heat input. Heat input is the function of temperature distribution of submerged arc welded plates. An attempt is made in this paper to find the analytical solution for a moving heat-source of egg-shape in a semi-infinite body. The considered modes of heat transfer for this study are conduction and convection. The solution has been obtained by integrating the instantaneous point heat source throughout the heat source volume. Very good agreement between the predicted and measured transient temperatures at various points on submerged arc-welded plates has been obtained. The predicted yield parameters are also in good agreement with the measured values.

Abstract: An attempt has been made in this paper to findout the trainsent temperature distribution on the welded plates through analytical as well as numerical method considering double elliptic paraboloid moving heat source volume.It has been assumed that heat is distributed through gaussian manner on the welded plates and modes of heat transfer for welded plates are conduction as well as convection.With the help of these solutions dimnesions of weld bead geometry,HAZ width and thermal stress have been predicted and validated with the experimental data.