| 基于广义塑性力学的土体次加载面循环塑性模型(Ⅰ): 理论与模型 |
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| 引用本文： | 孔亮,郑颖人,姚仰平.基于广义塑性力学的土体次加载面循环塑性模型(Ⅰ): 理论与模型[J].岩土力学,2003,24(2):141-145. |
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| 作者姓名： | 孔亮 郑颖人 姚仰平 |
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| 作者单位： | 1. 宁夏大学 物电学院固体力学研究所, 宁夏 银川 750021；2. 后勤工程学院土木工程系, 重庆 400041； 3. 北京航空航天大学土木工程系， 北京 100083 |
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| 基金项目： | 宁夏高等学校科研基金项目(No. JY 2002109) |
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| 摘 要： | 简要地介绍了次加载面理论的基本思想、假设及其物理解释。在广义塑性力学的框架内，引入次加载面的思想，把常规的椭圆-抛物线双屈服面模型，扩展为次加载面循环塑性模型，以反映循环荷载作用下土体的曼辛效应与棘轮效应。模型能考虑塑性应变增量对应力增量的相关性，既能反映土体的循环加载特性，又能反映正常固结土和超固结土的单调加载特性。
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| 关 键 词： | 广义塑性力学 次加载面 循环塑性 本构模型 |
| 文章编号： | 1000-7598-(2003)02-0141-05 |
| 收稿时间： | 2002-04-21 |
| 修稿时间： | 2002年4月21日 |
Subloading surface cyclic plastic model for soil based on Generalized plasticity (Ⅰ): Theory and model |
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| KONG Liang,ZHENG Ying-ren,YAO Yang-ping.Subloading surface cyclic plastic model for soil based on Generalized plasticity (Ⅰ): Theory and model[J].Rock and Soil Mechanics,2003,24(2):141-145. |
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| Authors: | KONG Liang ZHENG Ying-ren YAO Yang-ping |
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| Institution: | 1. Department of Physics & Electrical Information Engineering, Ningxia University, Yinchuang 750021, China; 2. Department of Civil Engineering, Logistical Engineering University, Chongqing 400041, China; 3. Department of Civil Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | The fundamental ideas and assumptions and their physical interpretations of subloading surface theory are presented. In order to describe the Massing effect and ratcheting effect of soils under cyclic loading, the conventional ellipse-parabola two-surface model is extended to the subloading surface cyclic plastic model by incorporating the Generalized plasticity and subloading surface theory. It is concluded that the model is capable of describing the deformation behavior of soil under monotonic and cyclic loading. |
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| Keywords: | Generalized plasticity subloading surface cyclic plasticity constitutive model |
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