Evolution of Coordination Number of Methane Hydrate Bearing Sediments during Quasi-static Shearing
Abstract Quasi-static shearing of methane hydrate bearing sediments (MHBS) was investigated by performing numerical tests using distinct element method (DEM) so as to comprehensively understand mechanical properties of MHBS. Stress-strain response and dilation behaviour of numerical tests were prese...
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Online Access: | http://dx.doi.org/10.1088/1755-1315/605/1/012018 https://iopscience.iop.org/article/10.1088/1755-1315/605/1/012018/pdf https://iopscience.iop.org/article/10.1088/1755-1315/605/1/012018 |
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crioppubl:10.1088/1755-1315/605/1/012018 2024-06-02T08:10:23+00:00 Evolution of Coordination Number of Methane Hydrate Bearing Sediments during Quasi-static Shearing Zhou, Shichen Zhou, Bo Xue, Shifeng Jia, Peng 2020 http://dx.doi.org/10.1088/1755-1315/605/1/012018 https://iopscience.iop.org/article/10.1088/1755-1315/605/1/012018/pdf https://iopscience.iop.org/article/10.1088/1755-1315/605/1/012018 unknown IOP Publishing http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining IOP Conference Series: Earth and Environmental Science volume 605, issue 1, page 012018 ISSN 1755-1307 1755-1315 journal-article 2020 crioppubl https://doi.org/10.1088/1755-1315/605/1/012018 2024-05-07T14:00:28Z Abstract Quasi-static shearing of methane hydrate bearing sediments (MHBS) was investigated by performing numerical tests using distinct element method (DEM) so as to comprehensively understand mechanical properties of MHBS. Stress-strain response and dilation behaviour of numerical tests were presented and compared with that of physical experiments. And then an examination of the evolution of coordination number (CN) during shearing was also presented, as well as its relation to anisotropy of contact orientations. The research results led us to conclude that (i) DEM can effectively capture the main characteristics of strength and deformation of MHBS; (ii) Distribution of CN shows obvious heterogeneity which is closely associated with shear bands; (iii) The average CN has a strong correlation with total number of contacts, and could be further interpreted from the point of view of anisotropy of contact orientations; Article in Journal/Newspaper Methane hydrate IOP Publishing IOP Conference Series: Earth and Environmental Science 605 012018 |
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Abstract Quasi-static shearing of methane hydrate bearing sediments (MHBS) was investigated by performing numerical tests using distinct element method (DEM) so as to comprehensively understand mechanical properties of MHBS. Stress-strain response and dilation behaviour of numerical tests were presented and compared with that of physical experiments. And then an examination of the evolution of coordination number (CN) during shearing was also presented, as well as its relation to anisotropy of contact orientations. The research results led us to conclude that (i) DEM can effectively capture the main characteristics of strength and deformation of MHBS; (ii) Distribution of CN shows obvious heterogeneity which is closely associated with shear bands; (iii) The average CN has a strong correlation with total number of contacts, and could be further interpreted from the point of view of anisotropy of contact orientations; |
format |
Article in Journal/Newspaper |
author |
Zhou, Shichen Zhou, Bo Xue, Shifeng Jia, Peng |
spellingShingle |
Zhou, Shichen Zhou, Bo Xue, Shifeng Jia, Peng Evolution of Coordination Number of Methane Hydrate Bearing Sediments during Quasi-static Shearing |
author_facet |
Zhou, Shichen Zhou, Bo Xue, Shifeng Jia, Peng |
author_sort |
Zhou, Shichen |
title |
Evolution of Coordination Number of Methane Hydrate Bearing Sediments during Quasi-static Shearing |
title_short |
Evolution of Coordination Number of Methane Hydrate Bearing Sediments during Quasi-static Shearing |
title_full |
Evolution of Coordination Number of Methane Hydrate Bearing Sediments during Quasi-static Shearing |
title_fullStr |
Evolution of Coordination Number of Methane Hydrate Bearing Sediments during Quasi-static Shearing |
title_full_unstemmed |
Evolution of Coordination Number of Methane Hydrate Bearing Sediments during Quasi-static Shearing |
title_sort |
evolution of coordination number of methane hydrate bearing sediments during quasi-static shearing |
publisher |
IOP Publishing |
publishDate |
2020 |
url |
http://dx.doi.org/10.1088/1755-1315/605/1/012018 https://iopscience.iop.org/article/10.1088/1755-1315/605/1/012018/pdf https://iopscience.iop.org/article/10.1088/1755-1315/605/1/012018 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_source |
IOP Conference Series: Earth and Environmental Science volume 605, issue 1, page 012018 ISSN 1755-1307 1755-1315 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1755-1315/605/1/012018 |
container_title |
IOP Conference Series: Earth and Environmental Science |
container_volume |
605 |
container_start_page |
012018 |
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1800756255338266624 |