Justification of fracture criteria for salt rocks
The study of salt rocks deformation and fracture processes is an essential part of mining parameters justification for mineral salt deposits. The results of uniaxial compression tests on large salt rock specimens are presented as a loading curve and diagrams of the transverse-longitudinal displacem...
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Gruppo Italiano Frattura
2022-09-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/3734 |
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| author | Alexander Baryakh Andrey Tsayukov |
| author_facet | Alexander Baryakh Andrey Tsayukov |
| author_sort | Alexander Baryakh |
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The study of salt rocks deformation and fracture processes is an essential part of mining parameters justification for mineral salt deposits. The results of uniaxial compression tests on large salt rock specimens are presented as a loading curve and diagrams of the transverse-longitudinal displacements at various distances from the side faces. Based on an isotropic elastoplastic model, a multivariant numerical simulation was performed. Its purpose was to select of fracture criteria that accurately describe the loading diagram of specimen and its transverse-longitudinal deformations. The following fracture criteria are considered: Tresca with the associated plastic flow rule, the associated and non-associated Mohr-Coulomb, the parabolic analogue of Mohr-Coulomb criterion and the volumetric fracture criterion. Numerical simulation was carried out by the displacement-based finite element method. Three-dimensional hexahedral eight-node isoparametric elements were used for discretization of the solution domain. It has been established that within the elastoplastic model of media the process of uniaxial compression of a large cubic salt rock specimen is adequately described by the linear Mohr-Coulomb fracture criterion with the non-associated plastic flow, as well as by the associated volumetric parabolic yield criterion with the linear isotropic hardening.
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| format | Article |
| id | doaj-art-6cf3e4e669454a488796401dee7f592f |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2022-09-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-6cf3e4e669454a488796401dee7f592f2025-02-03T10:34:51ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932022-09-011662Justification of fracture criteria for salt rocksAlexander Baryakh0Andrey Tsayukov1Mining Institute of the Ural Branch of the Russian Academy of Sciences, RussiaMining Institute of the Ural Branch of the Russian Academy of Sciences, Russia The study of salt rocks deformation and fracture processes is an essential part of mining parameters justification for mineral salt deposits. The results of uniaxial compression tests on large salt rock specimens are presented as a loading curve and diagrams of the transverse-longitudinal displacements at various distances from the side faces. Based on an isotropic elastoplastic model, a multivariant numerical simulation was performed. Its purpose was to select of fracture criteria that accurately describe the loading diagram of specimen and its transverse-longitudinal deformations. The following fracture criteria are considered: Tresca with the associated plastic flow rule, the associated and non-associated Mohr-Coulomb, the parabolic analogue of Mohr-Coulomb criterion and the volumetric fracture criterion. Numerical simulation was carried out by the displacement-based finite element method. Three-dimensional hexahedral eight-node isoparametric elements were used for discretization of the solution domain. It has been established that within the elastoplastic model of media the process of uniaxial compression of a large cubic salt rock specimen is adequately described by the linear Mohr-Coulomb fracture criterion with the non-associated plastic flow, as well as by the associated volumetric parabolic yield criterion with the linear isotropic hardening. https://www.fracturae.com/index.php/fis/article/view/3734Salt rocksElastoplasticityFracture CriteriaMathematical modelingFinite element method |
| spellingShingle | Alexander Baryakh Andrey Tsayukov Justification of fracture criteria for salt rocks Fracture and Structural Integrity Salt rocks Elastoplasticity Fracture Criteria Mathematical modeling Finite element method |
| title | Justification of fracture criteria for salt rocks |
| title_full | Justification of fracture criteria for salt rocks |
| title_fullStr | Justification of fracture criteria for salt rocks |
| title_full_unstemmed | Justification of fracture criteria for salt rocks |
| title_short | Justification of fracture criteria for salt rocks |
| title_sort | justification of fracture criteria for salt rocks |
| topic | Salt rocks Elastoplasticity Fracture Criteria Mathematical modeling Finite element method |
| url | https://www.fracturae.com/index.php/fis/article/view/3734 |
| work_keys_str_mv | AT alexanderbaryakh justificationoffracturecriteriaforsaltrocks AT andreytsayukov justificationoffracturecriteriaforsaltrocks |