Modeling the Mechanical Behavior of Methane Hydrate-Bearing Sand Using the Equivalent Granular Void Ratio
For the safe extraction of methane from hydrate reservoirs, modeling the mechanical behavior of the methane hydrate-bearing soil properly is crucial in order to enable designers to analysis hydrate-dissociation-induced geotechnical failures. Hydrate morphology is one of major factors affecting the m...
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ftunivsthongkong:oai:repository.hkust.edu.hk:1783.1-120642 2023-09-26T15:20:07+02:00 Modeling the Mechanical Behavior of Methane Hydrate-Bearing Sand Using the Equivalent Granular Void Ratio Shen, Jie Chiu, Abraham C. F. Ng, Charles Wang Wai 2022 https://repository.hkust.edu.hk/ir/Record/1783.1-120642 https://doi.org/10.3390/jmse10081040 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2077-1312&rft.volume=10&rft.issue=8&rft.date=2022&rft.spage=&rft.aulast=Shen&rft.aufirst=&rft.atitle=Modeling+the+Mechanical+Behavior+of+Methane+Hydrate-Bearing+Sand+Using+the+Equivalent+Granular+Void+Ratio&rft.title=JOURNAL+OF+MARINE+SCIENCE+AND+ENGINEERING http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000834933600002 http://www.scopus.com/record/display.url?eid=2-s2.0-85137576985&origin=inward English eng Mdpi https://repository.hkust.edu.hk/ir/Record/1783.1-120642 Journal of Marine Science and Engineering, v. 10, (8), 28 July 2022, article number 1040 2077-1312 https://doi.org/10.3390/jmse10081040 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2077-1312&rft.volume=10&rft.issue=8&rft.date=2022&rft.spage=&rft.aulast=Shen&rft.aufirst=&rft.atitle=Modeling+the+Mechanical+Behavior+of+Methane+Hydrate-Bearing+Sand+Using+the+Equivalent+Granular+Void+Ratio&rft.title=JOURNAL+OF+MARINE+SCIENCE+AND+ENGINEERING http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000834933600002 http://www.scopus.com/record/display.url?eid=2-s2.0-85137576985&origin=inward Methane hydrate Sand Combined model Equivalent granular void ratio Article 2022 ftunivsthongkong https://doi.org/10.3390/jmse10081040 2023-08-25T00:13:40Z For the safe extraction of methane from hydrate reservoirs, modeling the mechanical behavior of the methane hydrate-bearing soil properly is crucial in order to enable designers to analysis hydrate-dissociation-induced geotechnical failures. Hydrate morphology is one of major factors affecting the mechanical behavior of soil containing hydrate. This paper presents a new constitutive model for methane hydrate-bearing sand (MHBS) using the equivalent granular void ratio as a state variable, which can quantify the effects of the pore-filling and load-bearing hydrate morphology under a unifying framework. The proposed model is a combination of generalized plasticity and an elastic damage model so as to take into account the observed frictional and bonding aspects of MHBS, respectively. By using the concept of state-dependent dilatancy, the equivalent granular void ratio is formulated and adopted in the generalized plasticity model. In addition, a nonlinear damage function is implemented to elucidate the degradation of hydrate bonds with respect to shearing. Compared with the basic generalized plasticity model for host sand, only three additional parameters are required to capture key mechanical behaviors of MHBS. By comparing the triaxial test results of MHBS synthesized from a range of host sands with a predicted behavior by the proposed model, it is demonstrated that the new model can satisfactorily capture the stress-strain and volumetric behavior of MHBS under different hydrate saturations, confining pressures, and void ratios. Article in Journal/Newspaper Methane hydrate The Hong Kong University of Science and Technology: HKUST Institutional Repository Journal of Marine Science and Engineering 10 8 1040 |
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Open Polar |
collection |
The Hong Kong University of Science and Technology: HKUST Institutional Repository |
op_collection_id |
ftunivsthongkong |
language |
English |
topic |
Methane hydrate Sand Combined model Equivalent granular void ratio |
spellingShingle |
Methane hydrate Sand Combined model Equivalent granular void ratio Shen, Jie Chiu, Abraham C. F. Ng, Charles Wang Wai Modeling the Mechanical Behavior of Methane Hydrate-Bearing Sand Using the Equivalent Granular Void Ratio |
topic_facet |
Methane hydrate Sand Combined model Equivalent granular void ratio |
description |
For the safe extraction of methane from hydrate reservoirs, modeling the mechanical behavior of the methane hydrate-bearing soil properly is crucial in order to enable designers to analysis hydrate-dissociation-induced geotechnical failures. Hydrate morphology is one of major factors affecting the mechanical behavior of soil containing hydrate. This paper presents a new constitutive model for methane hydrate-bearing sand (MHBS) using the equivalent granular void ratio as a state variable, which can quantify the effects of the pore-filling and load-bearing hydrate morphology under a unifying framework. The proposed model is a combination of generalized plasticity and an elastic damage model so as to take into account the observed frictional and bonding aspects of MHBS, respectively. By using the concept of state-dependent dilatancy, the equivalent granular void ratio is formulated and adopted in the generalized plasticity model. In addition, a nonlinear damage function is implemented to elucidate the degradation of hydrate bonds with respect to shearing. Compared with the basic generalized plasticity model for host sand, only three additional parameters are required to capture key mechanical behaviors of MHBS. By comparing the triaxial test results of MHBS synthesized from a range of host sands with a predicted behavior by the proposed model, it is demonstrated that the new model can satisfactorily capture the stress-strain and volumetric behavior of MHBS under different hydrate saturations, confining pressures, and void ratios. |
format |
Article in Journal/Newspaper |
author |
Shen, Jie Chiu, Abraham C. F. Ng, Charles Wang Wai |
author_facet |
Shen, Jie Chiu, Abraham C. F. Ng, Charles Wang Wai |
author_sort |
Shen, Jie |
title |
Modeling the Mechanical Behavior of Methane Hydrate-Bearing Sand Using the Equivalent Granular Void Ratio |
title_short |
Modeling the Mechanical Behavior of Methane Hydrate-Bearing Sand Using the Equivalent Granular Void Ratio |
title_full |
Modeling the Mechanical Behavior of Methane Hydrate-Bearing Sand Using the Equivalent Granular Void Ratio |
title_fullStr |
Modeling the Mechanical Behavior of Methane Hydrate-Bearing Sand Using the Equivalent Granular Void Ratio |
title_full_unstemmed |
Modeling the Mechanical Behavior of Methane Hydrate-Bearing Sand Using the Equivalent Granular Void Ratio |
title_sort |
modeling the mechanical behavior of methane hydrate-bearing sand using the equivalent granular void ratio |
publisher |
Mdpi |
publishDate |
2022 |
url |
https://repository.hkust.edu.hk/ir/Record/1783.1-120642 https://doi.org/10.3390/jmse10081040 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2077-1312&rft.volume=10&rft.issue=8&rft.date=2022&rft.spage=&rft.aulast=Shen&rft.aufirst=&rft.atitle=Modeling+the+Mechanical+Behavior+of+Methane+Hydrate-Bearing+Sand+Using+the+Equivalent+Granular+Void+Ratio&rft.title=JOURNAL+OF+MARINE+SCIENCE+AND+ENGINEERING http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000834933600002 http://www.scopus.com/record/display.url?eid=2-s2.0-85137576985&origin=inward |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
https://repository.hkust.edu.hk/ir/Record/1783.1-120642 Journal of Marine Science and Engineering, v. 10, (8), 28 July 2022, article number 1040 2077-1312 https://doi.org/10.3390/jmse10081040 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2077-1312&rft.volume=10&rft.issue=8&rft.date=2022&rft.spage=&rft.aulast=Shen&rft.aufirst=&rft.atitle=Modeling+the+Mechanical+Behavior+of+Methane+Hydrate-Bearing+Sand+Using+the+Equivalent+Granular+Void+Ratio&rft.title=JOURNAL+OF+MARINE+SCIENCE+AND+ENGINEERING http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000834933600002 http://www.scopus.com/record/display.url?eid=2-s2.0-85137576985&origin=inward |
op_doi |
https://doi.org/10.3390/jmse10081040 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
10 |
container_issue |
8 |
container_start_page |
1040 |
_version_ |
1778143685805867008 |