An Ellipse-based Micromechanical Model for Angular Granular Materials

by John M. Ting, Univ of Lowell, Lowell, United States,

Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond


An ellipse-based two-dimensional Discrete Element algorithm for numerically modeling angular granular materials is developed and presented. Interparticle contact computations require the solution of a fourth degree algebraic equation, with contact forces computed using an incremental algorithm. An initial validation of the algorithm is described.

Subject Headings: Granular materials | Micromechanics | Computing in civil engineering | Numerical models | Two-dimensional models | Contact mechanics | Validation | Algorithms

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