Investigation on the mechanical properties of shale subjected to different conditions based on nanoindentation experiments and numerical simulation
Nano indentation has become an important means to study the mechanical properties of rock because of its nondestructive and high efficiency. In this work, the Weibull distribution function is used to statistically analyze the nanoindentation test results and to analyze them mechanically and parametr...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-12-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509522005708 |
| _version_ | 1811261528248156160 |
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| author | Shankun Zhao Xiaowei Xu Liu Yang Kai Qin Xiang Yu Qian Chao Nan Zhou Jianping Zuo |
| author_facet | Shankun Zhao Xiaowei Xu Liu Yang Kai Qin Xiang Yu Qian Chao Nan Zhou Jianping Zuo |
| author_sort | Shankun Zhao |
| collection | DOAJ |
| description | Nano indentation has become an important means to study the mechanical properties of rock because of its nondestructive and high efficiency. In this work, the Weibull distribution function is used to statistically analyze the nanoindentation test results and to analyze them mechanically and parametrically. The indentation process was simulated using ABAQUS to investigate the effect of semi-through cracks at the indentation on the indentation results. The experimental and simulated results were also analyzed using the dimensional analysis method. The results show that the elastic modulus, hardness and fracture toughness are positively correlated. The correlation between hardness and fracture toughness is poor. In the simulated indentation experiment, the number, depth, distance and Angle of semi-penetrating cracks have different effects on the indentation results. The proportional coefficients of dimensional analysis fitting curves are 0.464, 0.464, 0.457 and 0.462, respectively, which means that the number and depth of cracks have a great influence on the experimental results. |
| first_indexed | 2024-04-12T19:05:36Z |
| format | Article |
| id | doaj.art-e2877499bfdd4d7fafc712a0453cb48f |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-04-12T19:05:36Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-e2877499bfdd4d7fafc712a0453cb48f2022-12-22T03:20:02ZengElsevierCase Studies in Construction Materials2214-50952022-12-0117e01438Investigation on the mechanical properties of shale subjected to different conditions based on nanoindentation experiments and numerical simulationShankun Zhao0Xiaowei Xu1Liu Yang2Kai Qin3Xiang Yu4Qian Chao5Nan Zhou6Jianping Zuo7Mine Safety Technology Branch of China Coal Research Institute, Beijing 100013, China; School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaState Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaMine Safety Technology Branch of China Coal Research Institute, Beijing 100013, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China; State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China; Corresponding author at: School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China.Nano indentation has become an important means to study the mechanical properties of rock because of its nondestructive and high efficiency. In this work, the Weibull distribution function is used to statistically analyze the nanoindentation test results and to analyze them mechanically and parametrically. The indentation process was simulated using ABAQUS to investigate the effect of semi-through cracks at the indentation on the indentation results. The experimental and simulated results were also analyzed using the dimensional analysis method. The results show that the elastic modulus, hardness and fracture toughness are positively correlated. The correlation between hardness and fracture toughness is poor. In the simulated indentation experiment, the number, depth, distance and Angle of semi-penetrating cracks have different effects on the indentation results. The proportional coefficients of dimensional analysis fitting curves are 0.464, 0.464, 0.457 and 0.462, respectively, which means that the number and depth of cracks have a great influence on the experimental results.http://www.sciencedirect.com/science/article/pii/S2214509522005708NanoindentationShaleABAQUSDimensional analysisScale up |
| spellingShingle | Shankun Zhao Xiaowei Xu Liu Yang Kai Qin Xiang Yu Qian Chao Nan Zhou Jianping Zuo Investigation on the mechanical properties of shale subjected to different conditions based on nanoindentation experiments and numerical simulation Case Studies in Construction Materials Nanoindentation Shale ABAQUS Dimensional analysis Scale up |
| title | Investigation on the mechanical properties of shale subjected to different conditions based on nanoindentation experiments and numerical simulation |
| title_full | Investigation on the mechanical properties of shale subjected to different conditions based on nanoindentation experiments and numerical simulation |
| title_fullStr | Investigation on the mechanical properties of shale subjected to different conditions based on nanoindentation experiments and numerical simulation |
| title_full_unstemmed | Investigation on the mechanical properties of shale subjected to different conditions based on nanoindentation experiments and numerical simulation |
| title_short | Investigation on the mechanical properties of shale subjected to different conditions based on nanoindentation experiments and numerical simulation |
| title_sort | investigation on the mechanical properties of shale subjected to different conditions based on nanoindentation experiments and numerical simulation |
| topic | Nanoindentation Shale ABAQUS Dimensional analysis Scale up |
| url | http://www.sciencedirect.com/science/article/pii/S2214509522005708 |
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