| A hypoplastic model for gas hydrate-bearing sandy sediments | |
Zhang XH(张旭辉) ; Lin J; Lu XB(鲁晓兵); Liu LL; Liu CL; Li MY; Su YW(苏业旺)
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| Source Publication | INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
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| 2018-05-01 | |
| Volume | 42Issue:7Pages:931-942 |
| ISSN | 0363-9061 |
| Abstract | Gas hydrate-bearing sediments (GHBSs) have been considered as a potential energy resource. In this paper, the mechanical properties of GHBS are firstly investigated by the integrated test apparatus for synthesis of GHBS using silty sand as skeleton. Triaxial tests indicate an obvious transition of stress-strain relationship from strain hardening under low hydrate saturation and strain softening under high hydrate saturation. The hypoplastic models coupled with Drucker-Prager criterion and the Mohr-Coulomb criterion are proposed to analyze the stress-strain relationship of GHBS with considering the effective porosity because of the hydrate filling in the pores of GHBS. The strain hardening and softening behaviors are well predicted with less material parameters compared with the classical models. Compared with the test results, the proposed hypoplastic models are verified to be capable of capturing the salient features of the mechanical behaviors of GHBS under the conditions of little temperature change and no hydrate dissociation. |
| Keyword | effective porosity gas hydrate-bearing sediment hypo-plastic model strain hardening strain softening |
| DOI | 10.1002/nag.2772 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000429712000003 |
| WOS Keyword | ARTIFICIAL METHANE-HYDRATE ; MECHANICAL-PROPERTIES ; CONSTITUTIVE MODEL ; BEHAVIOR ; STRENGTH ; DISSOCIATION |
| WOS Research Area | Engineering, Geological ; Materials Science, Multidisciplinary ; Mechanics |
| WOS Subject | Engineering ; Materials Science ; Mechanics |
| Funding Organization | National Natural Science Foundation in China [41376078, 51639008] ; Youth Innovation Promotion Association CAS ; State Key Laboratory of Hydroscience and Engineering, Tsinghua University [sklhse-2017-D-02] ; China Geological Survey [DD20160216] |
| Classification | 二类 |
| Ranking | 1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/77927 |
| Collection | 流固耦合系统力学重点实验室 非线性力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Univ Nat Resources & Life Sci, Vienna, Austria 4.Qingdao Inst Marine Geol, Qingdao, Peoples R China 5.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 6.Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang XH,Lin J,Lu XB,et al. A hypoplastic model for gas hydrate-bearing sandy sediments[J]. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,2018,42,7,:931-942. |
| APA | 张旭辉.,Lin J.,鲁晓兵.,Liu LL.,Liu CL.,...&苏业旺.(2018).A hypoplastic model for gas hydrate-bearing sandy sediments.INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,42(7),931-942. |
| MLA | 张旭辉,et al."A hypoplastic model for gas hydrate-bearing sandy sediments".INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS 42.7(2018):931-942. |
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| IrJ2018315.pdf（1968KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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