The creep behavior and damage evolution evaluated by acoustic emission of thermally-cycled argillaceous siltstone at selected temperatures
文献类型：期刊论文
| 作者 | Li, Anrun2; Deng, Hui2; Shu, Xiaoyun1,3,4 |
| 刊名 | MECHANICS OF TIME-DEPENDENT MATERIALS
 |
| 出版日期 | 2024-02-15 |
| 页码 | 17 |
| 关键词 | High temperature and water cooling Argillaceous siltstone Uniaxial compression creep Burgers model AE characteristics |
| ISSN号 | 1385-2000 |
| DOI | 10.1007/s11043-024-09675-7 |
| 英文摘要 | In order to study the effect of high-temperature and water-cooling on the argillaceous siltstone creep mechanical behavior, the samples were treated at 200 degrees C, 600 degrees C, and 1000 degrees C respectively, and then cooled with water. Then, the uniaxial compression creep mechanics test was carried out, and the acoustic emission (AE) characteristics were monitored in the entire creep process in synchronization. The results show that: (1) With the increase in temperature, the creep failure strength of argillaceous siltstone decreases, and its macroscopic failure mode transition from shear failure mode to split failure mode. (2) High temperature inhibits both the instantaneous strain and the creep strain and steady creep rate are significantly reduced after high-temperature treatment. (3) The creep curves were fitted and identified by the L-M optimization algorithm under different high-temperature and water-cooling conditions. The Burgers creep model can better describe the argillaceous siltstone creep characteristics. Elastic coefficients E1\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$E_{1}$\end{document}, and E2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$E_{2}$\end{document}, and viscosity coefficients eta 1\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\eta _{1}$\end{document}, and eta 2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\eta _{2}$\end{document} decreased after high-temperature and water-cooling treatment. The viscosity is enhanced, and the damage-hardening characteristics are obvious. (4) The AE ringing count rate decreases at the initial loading moment and the steady creep stage after high-temperature treatment. The evolution trend of the AE event ringing count rate at the steady creep stage is consistent with that of the creep rate. |
| 资助项目 | Chengdu University of Technology Postgraduate Innovative Cultivation Program |
| WOS研究方向 | Mechanics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001162091400001 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40618]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Deng, Hui |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Chengdu Univ Technol, Key Lab Geohazard Prevent & Geoenvironm Protect, Chengdu 610059, Peoples R China 3.Huzhou Key Lab Green Bldg Technol, Huzhou, Peoples R China 4.Hohai Univ, Coll Civil & Transportat Engn, Nanjing 210024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Anrun,Deng, Hui,Shu, Xiaoyun. The creep behavior and damage evolution evaluated by acoustic emission of thermally-cycled argillaceous siltstone at selected temperatures[J]. MECHANICS OF TIME-DEPENDENT MATERIALS,2024:17. |
| APA | Li, Anrun,Deng, Hui,&Shu, Xiaoyun.(2024).The creep behavior and damage evolution evaluated by acoustic emission of thermally-cycled argillaceous siltstone at selected temperatures.MECHANICS OF TIME-DEPENDENT MATERIALS,17. |
| MLA | Li, Anrun,et al."The creep behavior and damage evolution evaluated by acoustic emission of thermally-cycled argillaceous siltstone at selected temperatures".MECHANICS OF TIME-DEPENDENT MATERIALS (2024):17. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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