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摘要翻译：
研究了慢速三维剪切流中剪切带的形成。我们模拟了分裂底剪切单元的线性版本。结果表明，在有重力和无重力的情况下，同一类型的宽剪切带都是存在的。我们研究了材料向定常流动的松弛，并分析了应力场和速度场。我们给出了块体内剪切带展宽的函数形式。我们讨论了材料处于临界状态区域的生长。发现临界区的增长是剪切带初始瞬态的原因。
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英文标题：
《Shear zones in granular media: 3D Contact Dynamics simulation》
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作者：
Alexander Ries, Tamas Unger, Dietrich E. Wolf
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最新提交年份：
2007
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分类信息：
一级分类：Physics 物理学
二级分类：Soft Condensed Matter 软凝聚态物质
分类描述：Membranes, polymers, liquid crystals, glasses, colloids, granular matter
膜，聚合物，液晶，玻璃，胶体，颗粒物质
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一级分类：Physics 物理学
二级分类：Statistical Mechanics 统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
Shear zone formation is investigated in slow 3D shear flows. We simulate the linear version of the split-bottom shear cell. It is shown that the same type of wide shear zones is achieved in the presence as well as in the absence of gravity. We investigate the relaxation of the material towards a stationary flow and analyze the stress and the velocity fields. We provide the functional form of the widening of the shear zone inside the bulk. We discuss the growth of the region where the material is in critical state. It is found that the growth of the critical zone is responsible for the initial transient of the shear zone.
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PDF链接：
https://arxiv.org/pdf/704.2392
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