| Autor: |
Juhyi Yim, Yoonsung Lee, Seungki Hong, Ki-Bok Min |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 12, Pp 3221-3229 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1674-7755 |
| DOI: |
10.1016/j.jrmge.2023.06.013 |
| Popis: |
To improve the accuracy of indirect tensile strength for a transversely isotropic rock in the Brazilian test, this study considered the three-dimensional (3D) deformation and the nonlinear stress–strain relationship. A parametric study of a numerical Brazilian test was performed for a general range of elastic constants, revealing that the 3D modeling evaluated the indirect tensile strength up to 40% higher than the plane stress modeling. For the actual Asan gneiss, the 3D model evaluated the indirect tensile strength up to 10% higher and slightly enhanced the accuracy of deformation estimation compared with the plane stress model. The nonlinearity in stress–strain curve of Asan gneiss under uniaxial compression was then considered, such that the evaluated indirect tensile strength was affected by up to 10% and its anisotropy agreed well with the physical intuition. The estimation of deformation was significantly enhanced. The further validation on the nonlinear model is expected as future research. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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