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Publications
Chen, B.Q., Hashemzadeh, M. e Guedes Soares, C. (2014) , “Numerical analysis of the effects of weld parameters on distortions and residual stresses in butt welded steel plates”, Developments in Maritime Transportation and Exploitation of Sea Resources, Guedes Soares, C. and López Peña F. (Eds.). Francis & Taylor Group, London, UK, pp. 309-320
The objective of this work is to develop 3D models and techniques for predicting the temperature field, distortions and residual stresses induced by a butt welding process. Finite element model of a plate subjected to double ellipsoidal moving heat source has been developed to simulate the welding process. The obtained transient temperature distributions have been applied as thermal loads in mechanical analyses to predict the structural responses. Temperature distribution, residual distortion, and shrinkages of the plate have been obtained and discussed in detail after validating the proposed numerical approach. The longitudinal stresses in different sections were discussed and verified with theoretical prediction. As the continuously work of the previous study on the effects of weld parameters on the temperature-time history in steel plates, the effect of weld parameter on the structural response of butt-welded plates are included as well.
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