| 弹塑性损伤模型在应变局部化分析中的应用 |
| |
| 引用本文： | 杨璐,朱浮声,沈新普. 弹塑性损伤模型在应变局部化分析中的应用[J]. 力学与实践, 2006, 28(2): 9-15,32 |
| |
| 作者姓名： | 杨璐 朱浮声 沈新普 |
| |
| 作者单位： | 东北大学资土学院,沈阳,110001;沈阳工业大学建工学院,沈阳,110023;东北大学资土学院,沈阳,110001;沈阳工业大学建工学院,沈阳,110023 |
| |
| 基金项目： | 国家自然科学基金项目(10472072)资助 |
| |
| 摘 要： | 非局部本构理论是为了有效地模拟应变局部化现象而提出并被广泛采用的理论模型．将目前已有的模型归为两大类,一是面积加权平均的非局部非弹性模型;二是梯度依赖的非局部模型．经过对这两大类模型的比较研究,发现Aiflantis模型用于非均匀材料的局部化现象数值模拟时是一个较为理想的模型,但该模型还有需改进之处．
|
| 关 键 词： | 非局部 弹塑性 损伤 本构模型 |
| 收稿时间： | 2005-03-17 |
| 修稿时间： | 2005-03-172006-02-07 |
APPLICATION OF ELASTOPLASTICITY COUPLED WITH DAMAGE IN STRAIN LOCALIZATION ANALYSIS |
| |
| YANG Lu,ZHU Fusheng,SHEN Xinpu. APPLICATION OF ELASTOPLASTICITY COUPLED WITH DAMAGE IN STRAIN LOCALIZATION ANALYSIS[J]. Mechanics and Engineering, 2006, 28(2): 9-15,32 |
| |
| Authors: | YANG Lu ZHU Fusheng SHEN Xinpu |
| |
| Affiliation: | 1.Northeastern University, Shenyang 110001, China;2.Shenyang Univercity of Technology, Shenyang 110023, China |
| |
| Abstract: | Nonlocal constitutive models are widely used for effectively simulating strain localization. The major models may be classified into the following two kinds: the weighted-area-averaged nonlocal model and the gradient-enhanced-nonlocal model. Comparison between the two models is made in this paper. It is found that the Aifantis model is a reasonable choice for numerical simulation of a localized non-homogeneous material, but it is subject to some improvements. |
| |
| Keywords: | elastoplasticity constitutive model damage nonlocal models |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《力学与实践》浏览原始摘要信息 |
|
点击此处可从《力学与实践》下载全文 |
|
