| 切向荷载下弹塑性材料的微观位移特性 |
| |
| 引用本文： | 何思明,吴永,沈均. 切向荷载下弹塑性材料的微观位移特性[J]. 工程力学, 2010, 27(2): 73-77 |
| |
| 作者姓名： | 何思明 吴永 沈均 |
| |
| 作者单位： | 中国科学院山地灾害与地表过程重点实验室,成都,610041;中国科学院-水利部成都山地灾害与环境研究所,成都,610041;中国科学院山地灾害与地表过程重点实验室,成都,610041;中国科学院-水利部成都山地灾害与环境研究所,成都,610041;中国科学院山地灾害与地表过程重点实验室,成都,610041;中国科学院-水利部成都山地灾害与环境研究所,成都,610041 |
| |
| 基金项目： | 国家重点基础研究发展计划项目(2008CB425802);;国家自然科学基金项目(40872181);;四川省科技计划项目(2008JY0004) |
| |
| 摘 要： | Fujimoto(2000)研究了受切向荷载作用的微凸体在完全弹性接触或完全塑性接触条件下的微观位移特性。而实际大多数微凸体在法向荷载作用下,因材料的弹塑性性质导致其接触是很难达到完全弹性接触或完全塑性状态的。因此,如何解决切向荷载作用下处于弹塑性接触状态的微凸体的微观位移特性就显得非常重要。作者以Fujimoto模型为基础,结合Cattaneo和Mindlin理论,研究了切向荷载作用下处于弹塑性接触状态微凸体的摩擦力-微观位移关系,并给出了一个计算实例,显示该文理论模型的合理性。
|
| 关 键 词： | Fujimoto模型 弹塑性材料 接触摩擦 粘着区 微观位移 |
MICRO-DISPLACEMENT CHARACTERISTICS OF ELASTIC-PLASTIC MATERIALS UNDER TANGENTIAL FORCE |
| |
| HE Si-ming,,WU Yong,SHEN Jun. MICRO-DISPLACEMENT CHARACTERISTICS OF ELASTIC-PLASTIC MATERIALS UNDER TANGENTIAL FORCE[J]. Engineering Mechanics, 2010, 27(2): 73-77 |
| |
| Authors: | HE Si-ming WU Yong SHEN Jun |
| |
| Affiliation: | 1. Key Laboratory of Mountain Hazards and Surface Process;Chinese Academy of Science;Chengdu 610041;China;2. Institute of Mountain Hazards and Environment;Chinese Academy of Sciences;China |
| |
| Abstract: | The character of asperity micro-displacements caused by a tangential load for perfect elastic or fully plastic contact materials was studied clearly by Fujimoto (2000). However, for most contacts of elastic-plastic materials, the above conditions cannot be satisfied. Here taken the Fujimoto model as the foundation and based on the Cattaneo & Mindlin theory, the relation between a contact friction and a micro-displacement under a tangential load for elastic-plastic materials is studied. At last, an example i... |
| |
| Keywords: | Fujimoto model elastic-plastic materials contact friction stick zone micro-displacement |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
