Failure Surface Variation Obtained with the Truss-Like Discrete Element Method

Abstract:

This paper presents the study of failure surface obtained in the truss-like Discrete Element Method (DEM). The element constitutive law considers the fracture energy of the material and its spatial variation is used to take into account the heterogeneity of the simulated materials. It is studied the influence of spatial distribution of fracture energy and the spatial lattice perturbation on the DEM failure surface. A DEM failure criterion is compared with concrete and rock failure.

• Periodical: Applied Mechanics and Materials (Volume 784)
• Pages: 225-232
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.784.225
• Online since: August 2015
• Authors: Guilherme Schumacher da Silva, Fabrício Goulart Fernandes, Angélica Bordin Colpo, Vicente B. Puglia, Luis E. Kosteski*
• Keywords: Discrete Element Method, Failure Surface, Fragile Rupture, Multiaxial Stress State

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