| Mechanical response of kerogen at high strain rates | |
Wang XH(王晓荷)1,2; Huang XF(黄先富)1,2 ; Gao MN(高梦霓)1,2; Zhao YP(赵亚溥)1,2
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| Corresponding Author | Zhao, Ya-Pu([email protected]) |
| Source Publication | INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
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| 2021-09-01 | |
| Volume | 155Pages:8 |
| ISSN | 0734-743X |
| Abstract | As the main organic component of shale, the kerogen has a direct impact on the shale reservoirs. A molecular aggregate is used to study mechanical behaviour of kerogen, of which the molecular weight distribution is rational conforming to the Gaussian distribution. The mechanical response of kerogen is obtained with different strain rates by using molecular dynamics simulations. The results show that kerogen shows material hardening and fracture strain decrease with the strain rate. In the plastic range, we analyse the causes of stress oscillation at the microscopic level, and obtain the relationship between the stress oscillation and hydrogen bond. A compressible hyper-viscoelastic constitutive model of kerogen is established, which describes the mechanical behaviour of kerogen with different strain rates. Our research provides a valuable insight in the kerogen properties, and helps to understand the mechanical behaviour of shale reservoirs from a micro-perspective. |
| Keyword | Kerogen aggregate in shale Strain rate Compressible hyper-viscoelasticity Constitutive model |
| DOI | 10.1016/j.ijimpeng.2021.103905 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000670065800002 |
| WOS Keyword | REACTIVE FORCE-FIELD ; OIL-SHALE KEROGEN ; MOLECULAR-DYNAMICS ; REAXFF SIMULATIONS ; CHEMICAL-STRUCTURE ; ELASTIC PROPERTIES ; ORGANIC-MATTER ; BEHAVIOR ; MATURITY ; FAILURE |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Funding Project | National Natural Science Foundation of China (NSFC)[12032019] ; National Natural Science Foundation of China (NSFC)[11872363] ; National Natural Science Foundation of China (NSFC)[51861145314] ; Chinese Academy of Sciences (CAS) Key Research Program of Frontier Sciences[QYZDJ-SSW-JSC019] ; CAS Strategic Priority Research Program[XDB22040401] |
| Funding Organization | National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) Key Research Program of Frontier Sciences ; CAS Strategic Priority Research Program |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Zhao, Ya-Pu |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/87062 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Wang XH,Huang XF,Gao MN,et al. Mechanical response of kerogen at high strain rates[J]. INTERNATIONAL JOURNAL OF IMPACT ENGINEERING,2021,155:8.Rp_Au:Zhao, Ya-Pu |
| APA | 王晓荷,黄先富,高梦霓,&赵亚溥.(2021).Mechanical response of kerogen at high strain rates.INTERNATIONAL JOURNAL OF IMPACT ENGINEERING,155,8. |
| MLA | 王晓荷,et al."Mechanical response of kerogen at high strain rates".INTERNATIONAL JOURNAL OF IMPACT ENGINEERING 155(2021):8. |
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| Jp2021F253.pdf（5656KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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