[10p-N103-1~6] Frontiers of Mechanical Behavior in Heterogeneous and Random Materials: Cross-Material Integration and Emerging Insights

4:15 PM - 4:45 PM JST(7:15 AM - 7:45 AM UTC)

[10p-N103-6] Multiscale modeling of high temperature creep damage in metallic materials

〇Kazuki Shibanuma¹ (1.UTokyo)

Keywords:

multiscale modelling,high temperature creep,damage

This study aims to quantitatively describe and predict high-temperature creep damage by developing a mesoscale model that bridges nanoscale molecular dynamics simulations and macroscale finite element analysis. The proposed model consists of three sub-models: a microstructure model, a grain growth model, and a void nucleation and growth model. Its validity was confirmed through quantitative comparisons with theoretical formulations and experimental results. Furthermore, sensitivity analyses of individual factors demonstrated the model’s applicability to structural loading and material design.