Daniel Berglund

TL;DR: In this paper, a comparison of five different material models applied to the simulation of a combined welding and heat treatment process for a fabricated martensitic stainless steel component is presented, where the simulation is performed early in the product development process and more sophisticated models are used to obtain more accurate predictions of deformations and residual stresses.

TL;DR: In this article, a model for post-necking response and crack initiation using shell elements larger then the typical bandwidth of the localized neck is used, based on a sequence of full field measurements throughout a tensile test; i.e. digital speckle photography (DSP).

TL;DR: In this paper, a shell element enhanced by embedded discontinuities is developed to improve coarse-mesh accuracy in terms of fracture initiation prediction and to regularize the post-instability response.

TL;DR: In this article, the axial compression analysis of a hat profile is performed using a thermomechanical simulation of the forming process with models for phase transformation kinetics, which provides the final geometry, phase composition and sheet thickness, and fracture prediction is based on local average per-phase critical maximum shear stress.

TL;DR: In this paper, the authors presented welding and heat treatment simulations of the same aerospace component but now using a three-dimensional shell model, which revealed that the two first welds have the greatest influence on a key dimension.