| 卢廷浩,鲍伏波.接触面薄层单元耦合本构模型[J].水利学报,2000,31(2):0071-0076 |
| 接触面薄层单元耦合本构模型 |
| A coupled constitutive model for interface thin-layer element |
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| DOI： |
| 中文关键词: 单剪试验 接触面 薄层单元 耦合本构模型 |
| 英文关键词: simple shear test interface thin-layer element coupled constitutive model |
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| 摘要点击次数: 2622 |
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| 中文摘要: |
| 接触面单剪试验显示，在土与结构接触界面土体一侧存在剪切错动带，剪切过程中的土尤其是粗颗粒土出现明显的剪胀/剪缩效应。为了反映剪切错动带的应力应变特征，更恰当地模拟土与结构的相互作用，提出了接触面薄层单元耦合本构模型。同时讨论了薄层单元厚度的确定问题。 |
| 英文摘要: |
| Simple shear test shows that there is a shear zone in soil nearby the contact surface, in which the shear dilation/ compression effect exists during shearing. In order to simulate the stress-strain relation of this shear zone and to simulate the interaction between soil and structure, a coupled constituive model is proposed and the thickness is discussed. |
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