论文标题

颗粒材料的脱色计量压缩:与离散元素建模期间涉及的能量的计算

Oedometric compression of a granular material: computation of energies involved during breakage with a discrete element modelling

论文作者

Nader, François, Silvani, Claire, Djeran-Maigre, Irini

论文摘要

提出了一种数值模型,可以使用“非平滑触点动力学”使用离散元素方法模拟晶粒破裂。该模型再现具有复杂形状的3D晶粒,并在单粒和肿瘤压缩中进行了测试。然后进行数值模拟以评估破裂期间的不同能量(表面产生和重新分布能)。估计表面创造能。结果对文献中发现的结果封闭。

A numerical model able to simulate the grain breakage with the discrete element method, using the "Non-Smooth Contact Dynamics" is presented. The model reproduces 3D grains having complex shapes and is tested in single grain and in oedometric compressions. Numerical simulations are then carried out to evaluate the different energies active during breakage (surface creation and redistribution energies). The surface creation energy is estimated. Results are closed to the ones found in the literature.

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