TY - RPRT TI - Applicability of discrete element method with spherical and clumped particles for constitutive study of granular materials AU - Qu, Tongming AU - Wang, Min AU - Feng, Yuntian PY - 2021 DO - 10.1016/j.jrmge.2021.09.015 UR - https://www.osti.gov/biblio/1880500 ID - 1880500 ER -