| 反复荷载作用下饱和砂土的一种普遍弹塑性模型 |
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| 引用本文： | 邱长林,闫澍旺,张敬.反复荷载作用下饱和砂土的一种普遍弹塑性模型[J].水利学报,1998,29(12):0042-0047. |
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| 作者姓名： | 邱长林 闫澍旺 张敬 |
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| 作者单位： | 天津大学水利系;天津大学水利系;天津港研所 |
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| 摘 要： | 本文建立了一个反映饱和砂土在动荷作用下反应特性的弹塑性模型.该模型通过引入相对应力比的概念使得应力路径上的每一个点都处于加载状态.模型不显式定义屈服面和塑性势函数，而是由破坏面、流动方向、初始加载面、加载方向和塑性模量等部分组成，具有参数少且易确定等特点.通过和试验数据的比较证明了该模型的合理性.
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| 关 键 词： | 反复荷载 弹塑性模型 相对应力比 |
An universal elasto-plastic model of saturated sands under cyclic loading |
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| Qiu Changlin,Yan Shuwang,Zhang Jing.An universal elasto-plastic model of saturated sands under cyclic loading[J].Journal of Hydraulic Engineering,1998,29(12):0042-0047. |
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| Authors: | Qiu Changlin Yan Shuwang Zhang Jing |
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| Institution: | 1.Tianjing University; 2.Tianjing Institute of Harbour Engineering |
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| Abstract: | An elasto-plastic model of saturated sands under cyclic loading is presented. Every point of this model is in a state of loading or neutral loading by the usage of relative stress ratio. The model does not define yield surface and potential surface explicitly but consists of failure envelope, flow direction, loading direction, original loading surface and plastic modulus. Parameters of this model are relatively fewer and easy to be determined. The feasibility of this model is verified by comparing the results predicted by this model with those of experiment. |
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| Keywords: | cyclic loading elasto-plastic model relative stress ratio |
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