An Efficient Modelling Approach for Predicting Residual Stress in Power-Beam Welds
Keyword(s):
Abstract The prediction of welding residual stress in components is often an important input to structural integrity assessments. An efficient modelling approach was developed for predicting residual stress in power-beam welds, including validation against residual stress measurements. Specifically, sequentially coupled thermo-mechanical finite element analysis was conducted using a simplified heat source that was tuned to the observed fusion zone from a weld macrograph and thermocouple data for a series of electron beam welds in 316L austenitic stainless steel with a variety of geometries. The predicted residual stresses were compared with contour method and neutron diffraction residual stress measurements.
2011 ◽
Vol 399-401
◽
pp. 1806-1811
2012 ◽
Vol 48
(08)
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pp. 54
◽