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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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.

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詳細情報 詳細情報について

  • CRID
    1390861648443686912
  • DOI
    10.11187/ijjsrm.240217
  • ISSN
    21898405
  • 本文言語コード
    en
  • データソース種別
    • JaLC
  • 抄録ライセンスフラグ
    使用不可

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