Computational methods for coupling microstructural and micromechanical materials response simulations

摘要: Computational materials simulations have traditionally focused on individual phenomena: grain growth, crack propagation, plastic flow, etc. However, real behavior results from a complex interplay between phenomena. In this project, the authors explored methods for coupling mesoscale of microstructural evolution and micromechanical response. one case, massively parallel (MP) microcracking in alumina stronglink were dynamically coupled. other, codes domain coarsening deformation CuSi braze alloys iteratively linked. program provided first comparison two promising ways to integrate computer codes. Coupled microstructural/micromechanical applied experimentally observed microstructures time. addition coupled codes, project developed suite new computational capabilities (PARGRAIN, GLAD, OOF, MPM, polycrystal plasticity, front tracking). The problem plasticity length scale continuum calculations was recognized solution strategy developed. validated stockpile materials.