Onset of pore collapse and dilatancy in porous sandstone under true triaxial compression: Experimental observation and micromechanical modeling
文献类型：期刊论文
| 作者 | Meng, Fanbao1,7; Shi, Lu2; Hall, Stephen3,5; Baud, Patrick6; Wong, Teng-fong1,4 |
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2025-02-01 |
| 卷号 | 186页码:17 |
| 关键词 | Compaction bands X-ray computed tomography Wing crack Strain energy |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/j.ijrmms.2024.105983 |
| 英文摘要 | We present new true triaxial compression data obtained in the ductile regime on Bleurswiller sandstone. The deformed samples show a range of failure modes qualitatively similar to what was reported by earlier experimental studies performed in conventional conditions (axisymmetric compression). In particular, visual inspection and X-ray Computed Tomography imaging reveal compaction localization in all our deformed samples. The pore collapse model of Zhu et al.( 2010) 1 is extended to include the role of the intermediate principal stress and our new data for the onset of shear-enhanced compaction are in basic agreement with this extended model that includes three stress invariants. Published true triaxial data obtained in the brittle regime highlights the impact of the intermediate principal stress on the onset of dilatancy. The predictions of the conventional sliding wing crack model extended to true triaxial conditions are in poor agreement with these data. Another energetic approach pioneered by Wiebols & Cook shows a better agreement with the experimental results. Our new data and analysis will help the interpretation of inelastic deformation under polyaxial compression in various geotechnical and tectonic settings. |
| 资助项目 | National Natural Science Foundation of China[42293354] ; National Natural Science Foundation of China[42402265] ; Fundamental Research Funds for the Central Universities, Sun Yat-sen University[23qnpy19] ; CUHK (SZRI)-SWPU collaborative project[D.01.21.00501] ; IdEx Unistra[ANR-10-IDEX-0002] ; SFRI-STRAT'US project[ANR-20-SFRI-0012] ; [42293350] |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001383297300001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43472]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Meng, Fanbao |
| 作者单位 | 1.Chinese Univ Hong Kong, Fac Sci, Dept Earth & Environm Sci, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan, Peoples R China 3.Lund Univ, Div Solid Mech, Lund, Sweden 4.SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA 5.Lund Inst Neutron & X ray Sci, Lund, Sweden 6.Univ Strasbourg, Inst Terre & Environm Strasbourg, CNRS, UMR 7063, Strasbourg, France 7.Sun Yat Sen Univ, Sch Earth Sci & Engn, Guangdong Prov Key Lab Mineral Resources & Geol Pr, Zhuhai 519082, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Fanbao,Shi, Lu,Hall, Stephen,et al. Onset of pore collapse and dilatancy in porous sandstone under true triaxial compression: Experimental observation and micromechanical modeling[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2025,186:17. |
| APA | Meng, Fanbao,Shi, Lu,Hall, Stephen,Baud, Patrick,&Wong, Teng-fong.(2025).Onset of pore collapse and dilatancy in porous sandstone under true triaxial compression: Experimental observation and micromechanical modeling.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,186,17. |
| MLA | Meng, Fanbao,et al."Onset of pore collapse and dilatancy in porous sandstone under true triaxial compression: Experimental observation and micromechanical modeling".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 186(2025):17. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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