Development of a finite-discrete element method with finite-strain elasto-plasticity and cohesive zone models for simulating the dynamic fracture of rocks
文献类型：期刊论文
| 作者 | Wu, Di2,3,4; Li, Haibo2,3 ; Fukuda, Daisuke4; Liu, Hongyuan1
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| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2023-04-01 |
| 卷号 | 156期号:-页码:- |
| ISSN号 | 0266-352X |
| 关键词 | GPU Parallelized FDEM Finite -strain elasto-plasticity Mohr -Coulomb plastic model Intrinsic cohesive zone model Dynamic fracture SHPB-based dynamic testing Rock Blasting |
| 英文摘要 | This paper implements a finite-strain-based Mohr-Coulomb (MC) elasto-plastic model into the combined finitediscrete element method (FDEM) with the intrinsic cohesive zone model (ICZM). The formulation of elastoplastic continuum elements based on the concept of unrotated configuration as the frame of reference is firstly incorporated into an in-house FDEM code, which is parallelized by general-purpose graphic processing units. The developed FDEM code can not only handle the finite elasto-plastic deformation, the large displacement, and the rotation of continuum elements but also simultaneously model the explicit rock fracturing. The split Hopkinson pressure bar (SHPB)-based dynamic tests, single-hole blasting, and model blasting experiments reported in the literature are then modeled using the FDEM with and without the MC model to elucidate the effects of the incorporation of the MC model on the dynamic rock fracturing simulation results. It is elucidated that the conventional FDEM tends to show more fractures and undesirable overestimations of local stresses and particle velocities while the proposed FDEM can reasonably avoid these issues in all the numerical simulations conducted in this study. |
| 学科主题 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000926765100001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35408]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.School of Engineering, College of Sciences and Engineering, University of Tasmania, Hobart, Tasmania 7001, Australia 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 3.University of Chinese Academy of Sciences, Beijing 100049, China 4.Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan |
| 推荐引用方式 GB/T 7714 | Wu, Di,Li, Haibo,Fukuda, Daisuke,et al. Development of a finite-discrete element method with finite-strain elasto-plasticity and cohesive zone models for simulating the dynamic fracture of rocks[J]. COMPUTERS AND GEOTECHNICS,2023,156(-):-. |
| APA | Wu, Di,Li, Haibo,Fukuda, Daisuke,&Liu, Hongyuan.(2023).Development of a finite-discrete element method with finite-strain elasto-plasticity and cohesive zone models for simulating the dynamic fracture of rocks.COMPUTERS AND GEOTECHNICS,156(-),-. |
| MLA | Wu, Di,et al."Development of a finite-discrete element method with finite-strain elasto-plasticity and cohesive zone models for simulating the dynamic fracture of rocks".COMPUTERS AND GEOTECHNICS 156.-(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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