Processing of crystalline structural materials usually involves interactions between multiple physical phenomena which influence the material microstructure and properties. Understanding the connection between processing conditions, microstructure, and material properties is an expensive process. It is therefore the aim of ICME to establish processing-microstructure-property relationships across multiple length scales with the help of computer simulations. DAMASK, an open source, multi-physics crystal plasticity software, is a simulation platform with the capability to perform and analyze complex multi-field simulations. Its modular structure allows for solving of different field equations, for example, mechanical, damage and diffusion equations using solvers provided by the PETSc numerical library. In this work, we present a model that couples the interplay between chemistry, mechanical and the damage fields at the microstructural scale to simulate hydrogen-assisted grain boundary fracture. As an application example, the role of material texture in the delayed fracture of metallic materials shall also be presented.