Effects of Bedding on The Dynamic Compressive Properties of Low Anisotropy Slate.
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| Title: | Effects of Bedding on The Dynamic Compressive Properties of Low Anisotropy Slate. |
|---|---|
| Authors: | Zhang, Xuemin1,2, Ou, Xuefeng1 ouxuefeng@csu.edu.cn, Gong, Fengqiang3, Yang, Junsheng1 |
| Source: | Rock Mechanics & Rock Engineering. Apr2019, Vol. 52 Issue 4, p981-990. 10p. |
| Subjects: | Anisotropy, Strain rate, Dynamic loads |
| Abstract: | The dynamic mechanical properties and behavior of transversely isotropic rock are vital in engineering applications. In this study, the dynamic compressive properties of a low anisotropy slate are investigated for five sample groups (θ = 0°, 30°, 45°, 60°, and 90°) using a split Hopkinson pressure bar (SHPB) with three loading levels. A cone-shaped striker is used for achieving a dynamic stress equilibrium. The test results illustrate that the failure patterns of slate at a low loading level can be divided into four major types and that bedding plays an increasingly dominant role in the failure of samples as the dip angle increases. The tensile splitting effect gradually begins to have a prominent influence on the failure patterns as the loading level increases. Moreover, the variations in the failure patterns may lead to a decrease in the strain rate effect when the dip angle increases from θ = 30° to θ = 60°. At θ = 90°, the measured dynamic critical strength is less than the static strength, possibly due to the anisotropic effect of bedding directivity. In addition, the dynamic strength of the slate exhibits a higher anisotropy under dynamic loading, and the strength anisotropy index first decreases and then increases as the loading level increases. [ABSTRACT FROM AUTHOR] |
| Copyright of Rock Mechanics & Rock Engineering is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Items | – Name: Title Label: Title Group: Ti Data: Effects of Bedding on The Dynamic Compressive Properties of Low Anisotropy Slate. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Xuemin%22">Zhang, Xuemin</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Ou%2C+Xuefeng%22">Ou, Xuefeng</searchLink><relatesTo>1</relatesTo><i> ouxuefeng@csu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Gong%2C+Fengqiang%22">Gong, Fengqiang</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Yang%2C+Junsheng%22">Yang, Junsheng</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Rock+Mechanics+%26+Rock+Engineering%22">Rock Mechanics & Rock Engineering</searchLink>. Apr2019, Vol. 52 Issue 4, p981-990. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Anisotropy%22">Anisotropy</searchLink><br /><searchLink fieldCode="DE" term="%22Strain+rate%22">Strain rate</searchLink><br /><searchLink fieldCode="DE" term="%22Dynamic+loads%22">Dynamic loads</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The dynamic mechanical properties and behavior of transversely isotropic rock are vital in engineering applications. In this study, the dynamic compressive properties of a low anisotropy slate are investigated for five sample groups (θ = 0°, 30°, 45°, 60°, and 90°) using a split Hopkinson pressure bar (SHPB) with three loading levels. A cone-shaped striker is used for achieving a dynamic stress equilibrium. The test results illustrate that the failure patterns of slate at a low loading level can be divided into four major types and that bedding plays an increasingly dominant role in the failure of samples as the dip angle increases. The tensile splitting effect gradually begins to have a prominent influence on the failure patterns as the loading level increases. Moreover, the variations in the failure patterns may lead to a decrease in the strain rate effect when the dip angle increases from θ = 30° to θ = 60°. At θ = 90°, the measured dynamic critical strength is less than the static strength, possibly due to the anisotropic effect of bedding directivity. In addition, the dynamic strength of the slate exhibits a higher anisotropy under dynamic loading, and the strength anisotropy index first decreases and then increases as the loading level increases. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Rock Mechanics & Rock Engineering is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00603-018-1638-3 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 981 Subjects: – SubjectFull: Anisotropy Type: general – SubjectFull: Strain rate Type: general – SubjectFull: Dynamic loads Type: general Titles: – TitleFull: Effects of Bedding on The Dynamic Compressive Properties of Low Anisotropy Slate. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhang, Xuemin – PersonEntity: Name: NameFull: Ou, Xuefeng – PersonEntity: Name: NameFull: Gong, Fengqiang – PersonEntity: Name: NameFull: Yang, Junsheng IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 07232632 Numbering: – Type: volume Value: 52 – Type: issue Value: 4 Titles: – TitleFull: Rock Mechanics & Rock Engineering Type: main |
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