Comparative verification of hydro-mechanical fracture behavior: Task G of international research project DECOVALEX-2023
文献类型：期刊论文
| 作者 | Mollaali, Mostafa2; Kolditz, Olaf2,12; Hu, Mengsu1; Park, Chan-Hee3; Park, Jung-Wook3; McDermott, Christopher Ian4; Chittenden, Neil5; Bond, Alexander6; Yoon, Jeoung Seok7; Zhou, Jian8 |
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 170页码:16 |
| 关键词 | Fracture mechanics Numerical method Code comparison Benchmarking DECOVALEX-2023 |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/j.ijrmms.2023.105530 |
| 英文摘要 | Numerical simulations become a necessity when experimental approaches cannot cover the required physical and time scale of interest. One of such area is a simulation of long-term host rock behaviors for nuclear waste disposal and simulation tools involved in the assessment must go through rigorous validation tests. The DECOVALEX project (Development of COupled models and their VAlidation against EXperiments) is dedicated to this purpose by international participants.a This work is part of the ongoing phase DECOVALEX- 2023 (D-2023, Task G) particularly aiming to simulate fracture behaviors under various conditions. Here, we cross-verified a variety of numerical methods including continuous and discontinuous approaches against four benchmark exercises with emphasis on numerical accuracy and parameterization of the various numerical approaches. The systematic inter-comparisons of test cases highlight advantages and disadvantages of the different numerical models. Numerical details on discretization effects (e.g. mesh density and orientation) and domain size were investigated in detail for practical applications. It became evident that meticulous attention to mesh resolution and domain size is imperative for achieving accurate numerical simulations, even for static cracks. Moreover, when comparing numerical methods to closed-form solutions for static cracks, all models successfully reproduced the maximum crack opening but encountered challenges near the crack tips. Finally, the paper discusses how to convert between and therefore compare parameters of various numerical approaches. Our benchmark studies reveal that each model necessitates a distinct number of parameters, even in simple scenarios like static crack aperture benchmarks. It is generally more practical to employ fewer parameters to mitigate model over-parameterization and enhance experimental feasibility. |
| 资助项目 | CNSC, Canada[DECOVALEX-2023] ; Taipower ; National Natural Science Foundation of China[52125903] ; SSM: Swedish Radiation Safety Authority ; Korea In-stitute of Energy Technology Evaluation and Planning (KETEP) - Korea government (Ministry of Trade, Indus-try and Energy)[SSM2020-2758] ; Basic Research Project of the Korea Institute of Geoscience and Mineral Resources ; Ministry of Science and ICT, Korea[GP2020-010] ; Institute for Korea Spent Nuclear Fuel (iKSNF) ; National Research Foundation of Korea (NRF) - Korea government (Ministry of Science and ICT, MSIT)[2021M2E1A1085193] ; German Federal Ministry of Education and Research (BMBF)[03G0899D] ; OGS phase-field method ; European Joint Programme on Radioactive Waste Management (EURAD WP-DONUT)[847593 (2019-2024)] ; US Department of Energy (DOE) ; [DE-AC02-05CH11231] |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001144775400001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40586]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Yoshioka, Keita |
| 作者单位 | 1.Energy Geosci Div, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA 2.UFZ Helmholtz Ctr Environm Res, Dept Environm Informat, D-04318 Leipzig, Germany 3.Korea Inst Geosci & Mineral Resources KIGAM, Deep Subsurface Storage & Disposal Res Ctr, Daejeon 34132, South Korea 4.Univ Edinburgh, Sch Geosci, Edinburgh EH9 3FE, Scotland 5.Quintessa Ltd, Henley On Thame RG9 1HG, England 6.Quintessa Ltd, Warrington WA3 7QU, England 7.DynaFrax UG Ltd, DynaFrax UG, D-14473 Potsdam, Germany 8.Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing, Peoples R China 9.Inst Rock & Soil Mech, Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 10.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mollaali, Mostafa,Kolditz, Olaf,Hu, Mengsu,et al. Comparative verification of hydro-mechanical fracture behavior: Task G of international research project DECOVALEX-2023[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2023,170:16. |
| APA | Mollaali, Mostafa.,Kolditz, Olaf.,Hu, Mengsu.,Park, Chan-Hee.,Park, Jung-Wook.,...&Yoshioka, Keita.(2023).Comparative verification of hydro-mechanical fracture behavior: Task G of international research project DECOVALEX-2023.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,170,16. |
| MLA | Mollaali, Mostafa,et al."Comparative verification of hydro-mechanical fracture behavior: Task G of international research project DECOVALEX-2023".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 170(2023):16. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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