Tire–terrain interaction plays a vital role in the mobility and control of off-road vehicles, especially under unstructured and granular conditions. This thesis explores tire–terrain interaction using two Discrete Element Method (DEM) -based platforms: the open-source simulation program Project Chrono, and the software EDEM from Altair.The thesis focuses on the simulation of tire behavior on dry granular terrains such as sand and gravel using EDEM–Adams co-simulation, with limited comparison to Projct Chrono to evaluate computational performance.EDEM is adopted as the primary DEM platform due to its robust contact modeling capabilities and GPU acceleration support. However, its limited multibody kinematic capabilities necessitate coupling with Adams for dynamic vehicle modeling.