| 基于湿度应力场理论的膨胀岩弹塑性本构关系 |
| |
| 引用本文： | 朱珍德,张爱军,张勇,邢福东.基于湿度应力场理论的膨胀岩弹塑性本构关系[J].岩土力学,2004,25(5):700-702. |
| |
| 作者姓名： | 朱珍德 张爱军 张勇 邢福东 |
| |
| 作者单位： | 河海大学 岩土工程研究所，江苏 南京 210098 |
| |
| 基金项目： | 河海大学科技创新基金资助项目(No.2001401743)。 |
| |
| 摘 要： | 由于含水率的变化使膨胀岩的弹性模量、泊松比和屈服极限等力学性能都将发生变化，从而引起膨胀应力、塑性流动和随湿度场而变化的屈服准则等都相互耦合在一起，因此，提出了基于湿度应力场理论的膨胀岩的弹塑性本构模型，并运用参变量变分原理建立了处理这一类问题的数值变分原理及其相应的有限元形式。
|
| 关 键 词： | 弹塑性 膨胀岩 本构关系 湿度应力场 参变量变分原理 |
| 文章编号： | 1000-7598-(2004)05-700-03 |
| 收稿时间： | 2003-01-24 |
| 修稿时间： | 2003年1月24日 |
Elastoplastic constitutive law of swelling rock based on humidity stress field theory |
| |
| ZHU Zhen-de,ZHANG Ai-jun,ZHANG Yong,XING Fu-dong.Elastoplastic constitutive law of swelling rock based on humidity stress field theory[J].Rock and Soil Mechanics,2004,25(5):700-702. |
| |
| Authors: | ZHU Zhen-de ZHANG Ai-jun ZHANG Yong XING Fu-dong |
| |
| Institution: | Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China |
| |
| Abstract: | Because of the change of water ratio, the mechanical properties of swelling rock, such as the elastic modulus, Poissons ratio and yield limit etc., will be changed. As of the result of water ratio effect, the swelling stress, plastic flow and yielding criteria which varied with the water ratio, etc., all of these will be coupled together. This paper proposed the elastoplastic constitutive model of swelling rock based on the humidity stress field theory and by using parametric variation principle to establish the numerical variation principle and its corresponding finite element form to solve this kind of problems. |
| |
| Keywords: | elastoplasticity swelling rock constitutive relation humidity stress field parametric variation principle |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
