On Applicability of Some Indirect Tests for Estimation of Tensile Strength of Anisotropic Rocks

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RASTEGAR F.; NEJATI H.R.; Ghazvinian a.; Hadei m.r.; Nazerigivi A.

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Journal Paper

Paper Information

Journal: JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES) Year:2020 | Volume:11 | Issue:3 Page(s): 711-720

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Title

On Applicability of Some Indirect Tests for Estimation of Tensile Strength of Anisotropic Rocks

Author(s)

Keywords

Tensile strength

Anisotropy

Schistose

Direction of foliation

Abstract

The Tensile strength of rocks plays a noteworthy role in their failure mechanism, and its determination can be beneficial in optimizing the design of the rock structures. Schistose rocks due to their inherent Anisotropy in different foliation directions show a diverse strength at each direction. The purpose of this work was to compare and assess the Tensile strength of phyllite, which was obtained in direct and indirect tensile tests in different foliation directions. To this end, several phyllite specimens with different foliation angles (0º , 30º , 45º , 60º , and 90º ) related to the loading axis (β ) were prepared. Finally, the direct tensile test, diametrical and axial point load tests, Brazilian test, and Schmidt hammer test were conducted on 188 samples. The results of the experimental tests revealed that the maximum and minimum Tensile strengths in direct tensile testing tension were directly related to the angles of 0º and 90º . Also it was observed that the Brazilian Tensile strength overestimated the Tensile strength. Furthermore, an exponential correlation was introduced between the direct Tensile strength and the Brazilian Tensile strength.

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APA: Copy

RASTEGAR, F., NEJATI, H.R., Ghazvinian, a., Hadei, m.r., & Nazerigivi, A.. (2020). On Applicability of Some Indirect Tests for Estimation of Tensile Strength of Anisotropic Rocks. JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES), 11(3 ), 711-720. SID. https://sid.ir/paper/659245/en

Vancouver: Copy

RASTEGAR F., NEJATI H.R., Ghazvinian a., Hadei m.r., Nazerigivi A.. On Applicability of Some Indirect Tests for Estimation of Tensile Strength of Anisotropic Rocks. JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES)[Internet]. 2020;11(3 ):711-720. Available from: https://sid.ir/paper/659245/en

IEEE: Copy

F. RASTEGAR, H.R. NEJATI, a. Ghazvinian, m.r. Hadei, and A. Nazerigivi, “On Applicability of Some Indirect Tests for Estimation of Tensile Strength of Anisotropic Rocks,” JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES), vol. 11, no. 3 , pp. 711–720, 2020, [Online]. Available: https://sid.ir/paper/659245/en

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