| Coupling of material point and continuum discontinuum element methods for simulating blast-induced fractures in rock | |
Yue ZW; Zhou J ; Feng C(冯春); Wang X; Peng LZ; Cong JY
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| Corresponding Author | Feng, Chun([email protected]) |
| Source Publication | COMPUTERS AND GEOTECHNICS
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| 2022-04-01 | |
| Volume | 144Pages:11 |
| ISSN | 0266-352X |
| Abstract | A rock blasting simulation method is proposed that couples the material point method (MPM) and continuum discontinuum element method (CDEM). Blast-induced rock fractures are captured by the CDEM using normal and shear springs, and the explosive detonation is simulated by the MPM with a Jones-Wilkins-Lee equation of state. A particle-surface/edge contact method is introduced into the MPM-CDEM to calculate the interaction between the detonation products and rock medium. Three numerical examples are presented to verify the effectiveness of the proposed method. The fracture degree is represented as the ratio of the number of fractured springs to the total number of springs, and is used to analyze the evolution of shear and tension cracks under blasting. The simulation results show that the proposed numerical method well simulates blast-induced rock fractures and considers both progressive rock fracturing and the real explosive detonation. In particular, the expansion of the detonation gas, crushed zone around the blasthole, radial cracks, and effects of pre-existing stress on the blast-induced fractures are all successfully simulated. |
| Keyword | Continuum-discontinuum element method Material point method Rock blasting Numerical simulation |
| DOI | 10.1016/j.compgeo.2021.104629 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000754537300002 |
| WOS Keyword | INDUCED STRESS WAVES ; NUMERICAL-SIMULATION ; CONSTITUTIVE MODEL ; PARTICLE METHOD ; DAMAGE ; PROPAGATION ; MASS ; FRAGMENTATION ; MECHANISMS ; VIBRATIONS |
| WOS Research Area | Computer Science ; Engineering ; Geology |
| WOS Subject | Computer Science, Interdisciplinary Applications ; Engineering, Geological ; Geosciences, Multidisciplinary |
| Funding Project | National Natural Science of China |
| Funding Organization | National Natural Science of China |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Feng, Chun |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/88597 |
| Collection | 流固耦合系统力学重点实验室 |
| Recommended Citation GB/T 7714 | Yue ZW,Zhou J,Feng C,et al. Coupling of material point and continuum discontinuum element methods for simulating blast-induced fractures in rock[J]. COMPUTERS AND GEOTECHNICS,2022,144:11.Rp_Au:Feng, Chun |
| APA | Yue ZW,Zhou J,冯春,Wang X,Peng LZ,&Cong JY.(2022).Coupling of material point and continuum discontinuum element methods for simulating blast-induced fractures in rock.COMPUTERS AND GEOTECHNICS,144,11. |
| MLA | Yue ZW,et al."Coupling of material point and continuum discontinuum element methods for simulating blast-induced fractures in rock".COMPUTERS AND GEOTECHNICS 144(2022):11. |
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| File Name/Size | DocType | Version | Access | License | ||
| Jp2022F82.pdf（5753KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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