Rock Mechanical Property Influenced by Inhomogeneity
In order to identify the microstructure inhomogeneity influence on rock mechanical property, SEM scanning test and fractal dimension estimation were adopted. The investigations showed that the self-similarity of rock microstructure markedly changes with the scanned microscale. Different rocks behave...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2012/418729 |
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| _version_ | 1832568258920710144 |
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| author | Yunliang Tan Dongmei Huang Ze Zhang |
| author_facet | Yunliang Tan Dongmei Huang Ze Zhang |
| author_sort | Yunliang Tan |
| collection | DOAJ |
| description | In order to identify the microstructure inhomogeneity influence on rock mechanical property, SEM scanning test and fractal dimension estimation were adopted. The investigations showed that the self-similarity of rock microstructure markedly changes with the scanned microscale. Different rocks behave in different fractal dimension variation patterns with the scanned magnification, so it is conditional to adopt fractal dimension to describe rock material. Grey diabase and black diabase have high suitability; red sandstone has low suitability. The suitability of fractal-dimension-describing method for rocks depends on both investigating scale and rock type. The homogeneities of grey diabase, black diabase, grey sandstone, and red sandstone are 7.8, 5.7, 4.4, and 3.4, separately; their average fractal dimensions of microstructure are 2.06, 2.03, 1.72, and 1.40 correspondingly, so the homogeneity is well consistent with fractal dimension. For rock material, the stronger brittleness is, the less profile fractal dimension is. In a sense, brittleness is an image of rock inhomogeneity in macroscale, while profile fractal dimension is an image of rock inhomogeneity in microscale. To combine the test of brittleness with the estimation of fractal dimension with condition will be an effective approach for understanding rock failure mechanism, patterns, and behaviours. |
| format | Article |
| id | doaj-art-f92551ae2ebc429a9414239397938d03 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-f92551ae2ebc429a9414239397938d032025-02-03T00:59:30ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422012-01-01201210.1155/2012/418729418729Rock Mechanical Property Influenced by InhomogeneityYunliang Tan0Dongmei Huang1Ze Zhang2State Key Laboratory of Mine Disaster Prevention and Control, Shandong University of Science and Technology, Shandong, Qingdao 266590, ChinaState Key Laboratory of Mine Disaster Prevention and Control, Shandong University of Science and Technology, Shandong, Qingdao 266590, ChinaState Key Laboratory of Mine Disaster Prevention and Control, Shandong University of Science and Technology, Shandong, Qingdao 266590, ChinaIn order to identify the microstructure inhomogeneity influence on rock mechanical property, SEM scanning test and fractal dimension estimation were adopted. The investigations showed that the self-similarity of rock microstructure markedly changes with the scanned microscale. Different rocks behave in different fractal dimension variation patterns with the scanned magnification, so it is conditional to adopt fractal dimension to describe rock material. Grey diabase and black diabase have high suitability; red sandstone has low suitability. The suitability of fractal-dimension-describing method for rocks depends on both investigating scale and rock type. The homogeneities of grey diabase, black diabase, grey sandstone, and red sandstone are 7.8, 5.7, 4.4, and 3.4, separately; their average fractal dimensions of microstructure are 2.06, 2.03, 1.72, and 1.40 correspondingly, so the homogeneity is well consistent with fractal dimension. For rock material, the stronger brittleness is, the less profile fractal dimension is. In a sense, brittleness is an image of rock inhomogeneity in macroscale, while profile fractal dimension is an image of rock inhomogeneity in microscale. To combine the test of brittleness with the estimation of fractal dimension with condition will be an effective approach for understanding rock failure mechanism, patterns, and behaviours.http://dx.doi.org/10.1155/2012/418729 |
| spellingShingle | Yunliang Tan Dongmei Huang Ze Zhang Rock Mechanical Property Influenced by Inhomogeneity Advances in Materials Science and Engineering |
| title | Rock Mechanical Property Influenced by Inhomogeneity |
| title_full | Rock Mechanical Property Influenced by Inhomogeneity |
| title_fullStr | Rock Mechanical Property Influenced by Inhomogeneity |
| title_full_unstemmed | Rock Mechanical Property Influenced by Inhomogeneity |
| title_short | Rock Mechanical Property Influenced by Inhomogeneity |
| title_sort | rock mechanical property influenced by inhomogeneity |
| url | http://dx.doi.org/10.1155/2012/418729 |
| work_keys_str_mv | AT yunliangtan rockmechanicalpropertyinfluencedbyinhomogeneity AT dongmeihuang rockmechanicalpropertyinfluencedbyinhomogeneity AT zezhang rockmechanicalpropertyinfluencedbyinhomogeneity |