爆裂颗粒过渡

A. Ghosh, M. M. Bandi, S. Ghosh
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引用次数: 0

摘要

在对受到快速面内剪切加载的弱约束二维可变形圆柱体组件进行的实验中,我们发现了实现压实的关键障碍。这一障碍涉及机械不稳定性之间的动态过渡,随着密度的增加,从平面内的重新排列发展到平面外的爆裂。爆裂效应加强了来自密闭壁的摩擦约束,限制了颗粒的流动性,阻碍了系统实现更大的压实。我们对这一转变进行了量化,并证明粒子间的摩擦有助于平滑这一转变。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Popping: A granular transition

Popping: A granular transition
In experiments conducted on a weakly confined 2D assembly of deformable cylinders subject ed to rapid in-plane shear loading, we have identified the key obstacle in achieving compaction. This obstacle involves a dynamic transition between mechanical instabilities, progressing from in-plane rearrangement to out-of-plane popping as the density increases. The popping effect reinforces the frictional constraints from the confining wall and restricts particle mobility, impeding the system from attaining greater compaction. We quantify this transition and demonstrate that interparticle friction contributes to smoothing the transition.
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CiteScore
8.60
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