Author(s)

H. Martikka & S. Toivanen

Abstract

The goal is to study the damage of structural steel weld HAZ zone at the weld toe. The macroscopically active and residual stresses are applied to a microscopic FEM model containing the microstructural elements of several grains and phases and the outer surface topography. Also damage FEM mechanics are used. The progress of damage is observed by simulations. The plastic deformation progress to damage was also studied with analytical continuum models of two phases.The model of Mileiko proved satisfactory. These methods can be used in designing welds optimally. 1 Introduction The first goal is to study and develop

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