Computational Granular Mechanics

Our work focuses on developing new rheological models for granular materials, which are found in nature and various industries. These materials can act both like solids and liquids depending on the applied sollicitation. A new model that combines ideas from fluid mechanics and soil mechanics was developed to better represent this behavior and was implemented within a MPM code. This model works well for different scenarios, including flows with cohesion, compressibility, and free surfaces. We've tested it against existing solutions and experimental data, and it matches the expected behaviors seen in various situations. Our model has potential applications in the modeling of gravitational mass movements such as snow and rock avalanche as well as debris flows.