| On the degradation of granular materials due to internal erosion | |
Wang XL(王晓亮) ; Li JC(李家春); Li, JC (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China.
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| Source Publication | Acta Mechanica Sinica
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| 2015-10 | |
| Volume | 31Issue:5Pages:685-697 |
| ISSN | 0567-7718 |
| Abstract | 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. |
| Keyword | Internal Erosion Degradation Granular Materials Discrete Element Method |
| Subject Area | 应用力学 ; 水利工程基础学科 ; 防洪 |
| DOI | 10.1007/s10409-015-0466-x |
| URL | 查看原文 |
| Indexed By | SCI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:000364450700010 |
| WOS Keyword | CONSTITUTIVE MODEL ; PARTICLE REMOVAL ; PLASTICITY MODEL ; SAND PRODUCTION ; SOILS ; DILATANCY ; APPARATUS ; MEDIA ; FLOW ; DEM |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Funding Organization | The authors appreciate the financial support by National Natural Science Foundation of China (Grants 11432015 and 10932012). The authors would like to thank Dr. Fu, Dr. Zhang, and Mr. Peng for helpful discussion on the mechanism of piping and its modeling. |
| Department | LMFS水环境流体力学(LEM) |
| Classification | 二类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/58324 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | Li, JC (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Wang XL,Li JC,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,&Li, JC .(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. |
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| AMS 2015.pdf（4515KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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