*Hans-Georg Matuttis1, Mitsutoshi Sato1, Dominik Krengel2, Jian Chen3
(1. Department of Mechanical and Intelligent Systems Engineering, The University of Electro- communications, Chofu Chofugaoka 1-5-1, Tokyo 182-8585, Japan., 2. Department of Engineering Mechanics and Energy, Tsukuba University, 1-1-1, Tennodai, Tsukuba, 305-8573, Japan., 3. Center for Mathematical Science and Advanced Technology, Japan Agency for Marine-Earth Science and Technology, 3173-25, Showa-machi, Kanazawa-ku, Yokohama, 236-0001, Japan)
Keywords:granular materials, static Coulomb friction, numerical stabilization, multibody physics, Differential algebraic equations