Professor Chris Truman, Solid Mechanics, Bristol University

Simulation of high energy beam welding with validation
When May 12, 2014
from 02:00 PM to 03:00 PM
Where LR8, IEB Building, Engineering Science
Contact Name
Contact Phone 01865-283302
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New methods for joining materials used in advanced nuclear power plants are of interest to increase efficiency and productivity. Optimised joints require narrow heat affected zones, low residual stress, strain and distortion. This requires research into a large range of aspects including the nature of the joining processes, characterisation of the joint materials and the integrity of joints in manufacture and service. Of particular interest is the high energy beam welding of P91 steel, used extensively in power plants. Laser beam welding (LBW) and electron beam welding (EBW) are both considered. The presentation will discuss recent advances in numerical modelling of LBW and EBW including the influence of solid state phase transformations and validation of the predictions through the use of neutron diffraction. Conclusions will be made which consider and highlight the key requirements for the provision of accurate predictions.