Biyao Zhai, Lu Liu, Shunying Ji*
CMES-Computer Modeling in Engineering & Sciences, Vol.130, No.1, pp. 1-22, 2022, DOI:10.32604/cmes.2022.018652
Abstract Freezing in ice rubble is a common phenomenon in cold regions, which can consolidate loose blocks and change
their mechanical properties. To model the cohesive effect in frozen ice rubble, and to describe the fragmentation
behavior with a large external forces exerted, a freeze-bond model based on the dilated polyhedral discrete element
method (DEM) is proposed. Herein, imaginary bonding is initialized at the contact points to transmit forces and
moments, and the initiation of the damage is detected using the hybrid fracture model. The model is validated
through the qualitative agreement between the simulation results and the analytical solution of… More >
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