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首页> 外文期刊>Archives of Hydro-engineering and Environmental Mechanics >Simulation of Shear Localization in Granular Bodies within Gradient-Enhanced Hypoplasticity
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Simulation of Shear Localization in Granular Bodies within Gradient-Enhanced Hypoplasticity

机译：梯度低塑性下颗粒体剪切局部化的模拟

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The paper presents a FE-analysis of a spontaneous shear localization inside non-cohesive sand during plane strain compression. The calculations were carried out with a gradient-enhanced hypoplastic constitutive law. The hypoplastic law can reproduce essential features of granular bodies depending on the void ratio, pressure level and deformation direction. To model the thickness of shear zones, a characteristic length of the microstructure was incorporated via the second gradient of the modulus of the deformation rate. To determine the effect of micro-structure, the analysis was performed with different characteristic lengths for the same specimen size.
机译：本文提出了平面应变压缩过程中非粘性砂内部自发剪切局部化的有限元分析。使用梯度增强的塑性变形本构律进行计算。根据孔隙率，压力水平和变形方向，塑性定律可以再现粒状体的基本特征。为了模拟剪切区的厚度，通过变形率模量的第二个梯度，结合了微结构的特征长度。为了确定微观结构的影响，对于相同的样本大小，使用不同的特征长度进行了分析。

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