The blog discusses the complexity of simulating the additive manufacturing process of Ti-6Al-4V due to microstructural changes and allotropic transformations during thermo-mechanical processing. By using a combined metallurgical and flow-stress model in simulations, the study effectively predicts stress and distortion, contributing to the understanding of how to manage these issues in titanium alloy additive manufacturing.…
Shape rolling is a metalworking process in which reheated billets are passed through rolling stands to reshape their cross-section. This process involves roughing and finishing stages. The optimization platform for this process integrates advanced microstructure-based material models, finite element solvers, and multi-objective optimization routines to enhance the efficiency and accuracy of the rolling process.…
The updated Lagrangian formulation is ideal for large strain-deformation-rotation elasto-plastic problems, allowing accurate tracing of free surfaces and deformation history. To counter mesh distortions, a new mesh is progressively generated, and state variables are mapped using finite element shape functions, ensuring accurate interpolation and stable results.…
