On the degradation of granular materials due to internal erosion
文献类型：期刊论文
| 作者 | Wang XL(王晓亮) ; Li JC(李家春)
|
| 刊名 | Acta Mechanica Sinica
 |
| 出版日期 | 2015-10 |
| 卷号 | 31期号:5页码:685-697 |
| 通讯作者邮箱 | wangxiaoliang@imech.ac.cn ; jcli05@imech.ac.cn |
| 关键词 | Internal erosion Degradation Granular materials Discrete element method |
| ISSN号 | 0567-7718 |
| 产权排序 | [Wang, Xiaoliang; Li, Jiachun] Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China |
| 通讯作者 | Li, JC (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China. |
| 中文摘要 | A new state-based elasto-plastic constitutive relationship along with the discrete element model is established to estimate the degradation of granular materials due to internal erosion. Four essential effects of internal erosion such as the force network damage and relaxation are proposed and then incorporated into the constitutive relationship to formulate internal erosion impacts on the mechanical behavior of granular materials. Most manifestations in the degradation of granular materials, such as reduction of peak strength and dilatancy are predicted by themodified constitutive relationship in good agreement with the discrete element method (DEM) simulation. In particular, the sudden reduction of stress for conspicuous mass erosion in a high stress state is captured by force network damage and the relaxation mechanism. It is concluded that the newmodified constitutive relationship is a potential theory to describe the degradation of granular materials due to internal erosion and would be very useful, for instance, in the prediction and assessment of piping disaster risk during the flood season. |
| 学科主题 | 应用力学 ; 水利工程基础学科 ; 防洪 |
| 分类号 | 二类 |
| 类目[WOS] | Engineering, Mechanical ; Mechanics |
| 研究领域[WOS] | Engineering ; Mechanics |
| 关键词[WOS] | CONSTITUTIVE MODEL ; PARTICLE REMOVAL ; PLASTICITY MODEL ; SAND PRODUCTION ; SOILS ; DILATANCY ; APPARATUS ; MEDIA ; FLOW ; DEM |
| 收录类别 | SCI ; CSCD |
| 原文出处 | http://dx.doi.org/10.1007/s10409-015-0466-x |
| 语种 | 英语 |
| WOS记录号 | WOS:000364450700010 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/58324]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 推荐引用方式 GB/T 7714 | Wang XL,Li JC. On the degradation of granular materials due to internal erosion[J]. Acta Mechanica Sinica,2015,31(5):685-697. |
| APA | 王晓亮,&李家春.(2015).On the degradation of granular materials due to internal erosion.Acta Mechanica Sinica,31(5),685-697. |
| MLA | 王晓亮,et al."On the degradation of granular materials due to internal erosion".Acta Mechanica Sinica 31.5(2015):685-697. |
入库方式： OAI收割
来源：力学研究所
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