| 软土的损伤对剪切带形成的影响 |
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| 引用本文： | 孙红,赵锡宏.软土的损伤对剪切带形成的影响[J].同济大学学报(自然科学版),2001,29(3):278-282. |
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| 作者姓名： | 孙红 赵锡宏 |
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| 作者单位： | 同济大学地下建筑与工程系, |
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| 摘 要： | 在软土各向异性弹塑性损伤模型的基础上，把小应变模型扩展到有限应变模型，推导出不排水平面应变条件下的剪切带形成条件，分析Ko固结状态下各向异性损伤对剪切带形成的影响，计算结果表明，损伤变量越大，越接近不稳定状态，垂直方向损伤对剪切带的影响比水平方向的强裂。
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| 关 键 词： | 软土 各向异性 有限应变 剪切带 弹塑性损伤模型 等效应力 损伤演化方程 |
| 文章编号： | 0253-374(2001)03-0278-05 |
| 修稿时间： | 1999年10月19 |
Influence on Shear Band Formation by Damage of Soft Soil |
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| SUN Hong,ZHAO Xi hong.Influence on Shear Band Formation by Damage of Soft Soil[J].Journal of Tongji University(Natural Science),2001,29(3):278-282. |
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| Authors: | SUN Hong ZHAO Xi hong |
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| Abstract: | Based on elastoplastic damage model under small strain condition, the model under finite strain condition is developed. The influence of anisotropic damage on shear band formation is studied under the undrained plane strain condition. The bigger damage accumulation, the easier shear bands come into being. With K 0 consolidated clay, vertical damage is more inclined to instability by the localization of deformation. |
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| Keywords: | soft soil anisotropic damage elastoplastic finite strain shear band |
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