A time series comprehensive evaluation method of acoustic emission signal based on information entropy weighting and its application of red bed soft rock compression failure critical characteristics study
文献类型：期刊论文
| 作者 | Li, Anrun5; Deng, Hui5; Sun, Tiegang6; Wang, Yi1; Shu, Xiaoyun2,3; Wenf, Jing4 |
| 刊名 | JOURNAL OF BUILDING ENGINEERING
 |
| 出版日期 | 2023-07-15 |
| 卷号 | 71页码:16 |
| 关键词 | Information entropy weighting Time series comprehensive evaluation methods Red -bed soft rock Critical failure characteristics |
| DOI | 10.1016/j.jobe.2023.106498 |
| 英文摘要 | To deeply understand the self-organization critical phenomenon of red bed soft rock in the process of compression failure, a uniaxial compression test was carried out on silt mudstone. The acoustic emission signal was collected simultaneously during the whole test process. The infor-mation entropy theory was applied to weigh the acoustic emission signal. The translation time domain was introduced to analyze the acoustic emission signal time series variation law. Finally, the time series comprehensive evaluation index value variation law of acoustic emission signal based on information entropy weighting was obtained. (1) During the compression loading process, with the increase of time, all the time series comprehensive evaluation index values showed an increasing trend with the saturated cycle increasing. When the time series compre-hensive evaluation index value remains stable, it could be considered that the red bed soft rock enters a critical state. (2) The acoustic emission three-dimensional positioning results showed that when the compression failure reaches the critical point, the time series comprehensive evaluation index value would be the largest, and the coalescence crack also begins to form. When entering the critical state, the time series comprehensive evaluation index value would be in a stable state. (3) When the compression failure reached the critical point, the positioning signal would accu-mulate towards the rupture area until the sample was destroyed. The acoustic emission three-dimensional positioning results revealed the silt mudstone internal defects evolution law. These internal defects evolve from the slow and random development-disordered state to the instan-taneous development-ordered state. These evolution laws corresponded well with the time series comprehensive evaluation index value variation trend. (4) During the compressive loading pro-cess, the energy probability density function satisfied the power-function distribution under different saturated periods. The research results are expected to provide a theoretical reference for the study of red bed soft rock compression failure critical damage characteristics. |
| 资助项目 | Chengdu University of Technology Postgraduate Innovative Cultivation Program: Study on red -bed soft rock trans -dimensional damage mechanical properties and constitutive model in central Yunnan ; [CDUT2022BJCX007] |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001054955600001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39278]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Deng, Hui |
| 作者单位 | 1.Tongji Univ, Sch Software Engn, Shanghai 201804, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Hohai Univ, Coll Civil & Transportat Engn, Nanjing 210024, Peoples R China 4.China Southwest Geotech Invest & Design Inst Corp, Chengdu 610059, Peoples R China 5.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Prot, Chengdu 610059, Peoples R China 6.China Bldg Mat Southwest Survey & Design Co Ltd, Chengdu 610052, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Anrun,Deng, Hui,Sun, Tiegang,et al. A time series comprehensive evaluation method of acoustic emission signal based on information entropy weighting and its application of red bed soft rock compression failure critical characteristics study[J]. JOURNAL OF BUILDING ENGINEERING,2023,71:16. |
| APA | Li, Anrun,Deng, Hui,Sun, Tiegang,Wang, Yi,Shu, Xiaoyun,&Wenf, Jing.(2023).A time series comprehensive evaluation method of acoustic emission signal based on information entropy weighting and its application of red bed soft rock compression failure critical characteristics study.JOURNAL OF BUILDING ENGINEERING,71,16. |
| MLA | Li, Anrun,et al."A time series comprehensive evaluation method of acoustic emission signal based on information entropy weighting and its application of red bed soft rock compression failure critical characteristics study".JOURNAL OF BUILDING ENGINEERING 71(2023):16. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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