Experimental Investigation of Failure Mode and Energy Evolution under Uniaxial Recompression of Granite Predamaged
The research work aimed at identifying the failure mode and energy evolution of damaged granite by uniaxial compression tests. The predamage specimens were prepared by cyclic loading with high confining pressure under constant upper and lower cyclic limit loading, which were collected from China. Th...
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2024/4400608 |
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| _version_ | 1832544252300623872 |
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| author | Yabin Wu Xiaosheng Liu |
| author_facet | Yabin Wu Xiaosheng Liu |
| author_sort | Yabin Wu |
| collection | DOAJ |
| description | The research work aimed at identifying the failure mode and energy evolution of damaged granite by uniaxial compression tests. The predamage specimens were prepared by cyclic loading with high confining pressure under constant upper and lower cyclic limit loading, which were collected from China. The test results showed that the cyclic loading with high confining pressure does damage to the rock to a certain degree. The macrocracks of predamage rock appear initially when the uniaxial compressive stress reaches 0.8 σmax. The failure mode is mainly mixed by shear failure and tensile failure. There is a critical state of the cyclic test that the predamage rock transforms the brittle deformation into a ductile one during the triaxial compression loading. Before the critical state, the average deformation energy of predamage rock is impacted by confining pressure (strongly, linear negative). The impact energy index and the residual energy of the predamage rock gradually decrease linearly with the increase of confining pressure. |
| format | Article |
| id | doaj-art-26fd078e338c409b86c9a2cd0758b549 |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-26fd078e338c409b86c9a2cd0758b5492025-02-03T10:46:38ZengWileyAdvances in Civil Engineering1687-80942024-01-01202410.1155/2024/4400608Experimental Investigation of Failure Mode and Energy Evolution under Uniaxial Recompression of Granite PredamagedYabin Wu0Xiaosheng Liu1School of ResourcesSchool of ResourcesThe research work aimed at identifying the failure mode and energy evolution of damaged granite by uniaxial compression tests. The predamage specimens were prepared by cyclic loading with high confining pressure under constant upper and lower cyclic limit loading, which were collected from China. The test results showed that the cyclic loading with high confining pressure does damage to the rock to a certain degree. The macrocracks of predamage rock appear initially when the uniaxial compressive stress reaches 0.8 σmax. The failure mode is mainly mixed by shear failure and tensile failure. There is a critical state of the cyclic test that the predamage rock transforms the brittle deformation into a ductile one during the triaxial compression loading. Before the critical state, the average deformation energy of predamage rock is impacted by confining pressure (strongly, linear negative). The impact energy index and the residual energy of the predamage rock gradually decrease linearly with the increase of confining pressure.http://dx.doi.org/10.1155/2024/4400608 |
| spellingShingle | Yabin Wu Xiaosheng Liu Experimental Investigation of Failure Mode and Energy Evolution under Uniaxial Recompression of Granite Predamaged Advances in Civil Engineering |
| title | Experimental Investigation of Failure Mode and Energy Evolution under Uniaxial Recompression of Granite Predamaged |
| title_full | Experimental Investigation of Failure Mode and Energy Evolution under Uniaxial Recompression of Granite Predamaged |
| title_fullStr | Experimental Investigation of Failure Mode and Energy Evolution under Uniaxial Recompression of Granite Predamaged |
| title_full_unstemmed | Experimental Investigation of Failure Mode and Energy Evolution under Uniaxial Recompression of Granite Predamaged |
| title_short | Experimental Investigation of Failure Mode and Energy Evolution under Uniaxial Recompression of Granite Predamaged |
| title_sort | experimental investigation of failure mode and energy evolution under uniaxial recompression of granite predamaged |
| url | http://dx.doi.org/10.1155/2024/4400608 |
| work_keys_str_mv | AT yabinwu experimentalinvestigationoffailuremodeandenergyevolutionunderuniaxialrecompressionofgranitepredamaged AT xiaoshengliu experimentalinvestigationoffailuremodeandenergyevolutionunderuniaxialrecompressionofgranitepredamaged |