| Abstract Scope |
Materials used in extreme environments often experience accelerated fatigue, creep, and deformation, posing significant challenges to their performance and longevity. Understanding and predicting these effects is critical for the development of effective parts or materials for operation in these environments. Our study employs crystal plasticity models to analyze the influence of grain boundaries and compositional variations on mechanical behavior under extreme conditions. Through implementation in Abaqus via a user material (UMAT) subroutine, simulations capture key responses such as stress, strain, and energy dissipation per unit area under varying conditions. These outputs provide valuable insights into the limits of material performance and guide informed decisions in composition, geometry, and manufacturing processes. The ability to virtually test microstructural configurations and their responses offers a powerful approach to optimizing materials for high-stress applications, reducing not only trial-and-error in experimental development but costs and materials as well. |