{"title":"Strain localization in Fontainebleau sandstone","authors":"Abdelhamid Haied, Djimédo Kondo, Jean Pierre Henry","doi":"10.1002/(SICI)1099-1484(200004)5:3<239::AID-CFM97>3.0.CO;2-J","DOIUrl":null,"url":null,"abstract":"<p>The aim of the paper is to present a study of strain localization in Fontainebleau sandstone. To detect strain inhomogeneity, comparisons between measurements of strain and displacement at multiple locations have been done. A first series of tests have been performed on cylindrical samples. However, the results obtained show that the procedure followed is not systematically efficient. Thus, it was decided to use prismatic samples. In order to control the initiation of strain localization and follow the shear banding up to the macroscopic failure, a last series of tests were performed on prismatic specimens containing a small hole. The shear band characteristics (onset, orientation, width) are given for all these tests on prismatic specimens. Their variation with confining pressure is emphasized. Finally, some details on the deformation mechanisms inside the bands are provided by means of visual observations. Copyright © 2000 John Wiley & Sons, Ltd.</p>","PeriodicalId":100899,"journal":{"name":"Mechanics of Cohesive-frictional Materials","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2000-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/(SICI)1099-1484(200004)5:3<239::AID-CFM97>3.0.CO;2-J","citationCount":"13","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mechanics of Cohesive-frictional Materials","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/%28SICI%291099-1484%28200004%295%3A3%3C239%3A%3AAID-CFM97%3E3.0.CO%3B2-J","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 13
Abstract
The aim of the paper is to present a study of strain localization in Fontainebleau sandstone. To detect strain inhomogeneity, comparisons between measurements of strain and displacement at multiple locations have been done. A first series of tests have been performed on cylindrical samples. However, the results obtained show that the procedure followed is not systematically efficient. Thus, it was decided to use prismatic samples. In order to control the initiation of strain localization and follow the shear banding up to the macroscopic failure, a last series of tests were performed on prismatic specimens containing a small hole. The shear band characteristics (onset, orientation, width) are given for all these tests on prismatic specimens. Their variation with confining pressure is emphasized. Finally, some details on the deformation mechanisms inside the bands are provided by means of visual observations. Copyright © 2000 John Wiley & Sons, Ltd.
枫丹白露砂岩的应变局部化
本文的目的是对枫丹白露砂岩的应变局部化进行研究。为了检测应变不均匀性,对多个位置的应变和位移测量值进行了比较。对圆柱形样品进行了第一系列试验。然而,所获得的结果表明,所遵循的程序并非系统有效。因此,决定使用棱镜样品。为了控制应变局部化的开始,并遵循剪切带直至宏观失效,对含有小孔的棱柱试样进行了最后一系列试验。给出了棱柱试样上所有这些试验的剪切带特性(起始、方向、宽度)。强调了它们随围压的变化。最后,通过视觉观察提供了带内变形机制的一些细节。版权所有©2000 John Wiley&;有限公司。
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