Investigation of Anisotropic Characteristics of Mode I Rock Fractures under Various Loading-rate Conditions using 3-D GPGPU-accelerated Hybrid FEM/DEM
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- MIN Gyeong-Jo
- 北海道大学
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- FUKUDA Daisuke
- 北海道大学
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- NARA Yoshitaka
- 京都大学
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- OH Se-Wook
- Korea Institute of Geoscience and Mineral Resources
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- CHO Sang-Ho
- Jeonbuk National University
抄録
This research focuses on Mode I fracture in rock, vital for tensile fracture resistance in rock engineering such as blasting and hydraulic fracturing. Considering the fact that natural rock often shows anisotropic mechanical properties, we use a GPGPU-accelerated 3-D finite discrete element method (3-D FDEM) with an orthotropic elastic model and a new self-consistent scheme (NSCS) for a comprehensive understanding of anisotropic rock fracture behavior. The study involves numerical simulations of the straight-notched disc bend (SNDB) test to evaluate Mode I fracture toughness under both quasi-static and dynamic loads. We extensively analyze the Mode I fracture process, including fracture patterns and the influence of loading rates on toughness. These insights are crucial for managing rock fractures in various engineering applications, highlighting the importance of considering anisotropy in rock mechanics.
収録刊行物
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- International Journal of the JSRM
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International Journal of the JSRM 20 (2), 1-5, 2024-01-05
一般社団法人 岩の力学連合会
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詳細情報 詳細情報について
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- CRID
- 1390861648443686912
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- ISSN
- 21898405
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- 本文言語コード
- en
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- データソース種別
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- JaLC
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- 抄録ライセンスフラグ
- 使用不可