Failure Pattern of Perpendicular Non-Persistent Joints Beneath the Point Load of TBM’ s Cutter Using Experimental Test and Finite Element Method

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Sarfarazi V.; Mohamadi Bolban Abad Sh.

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Journal Paper

Paper Information

Journal: JOURNAL OF MINERAL RESOURCES ENGINEERING Year:2021 | Volume:5 | Issue:4 Page(s): 18-22

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Information Journal Paper

Title

Failure Pattern of Perpendicular Non-Persistent Joints Beneath the Point Load of TBM’ s Cutter Using Experimental Test and Finite Element Method

Author(s)

Sarfarazi V. | Mohamadi Bolban Abad Sh. | Issue Writer Certificate

Keywords

U shape cutter

Perpendicular non-persistent joints

Tensile crack

Tunnel boring machine

Abstract

In this paper, the failure pattern of non-persistent joint under U shape cutter was studied by experimental test and numerical simulation. For this purpose, 4 gypsum sample with dimension of 5cm*10cm*10cm containing perpendicular non-persistent joint were prepared. Samples have 2 vertical non-persistent joint with lengths of 1cm and 2 cm. the angle of small joint related to horizontal axis was 0° , 45° , 90° and 135° . This sample was subjected to U shape cutter loading. Concurrent with experimental test, numerical simulation was performed using Franc2d on the non-persistent joint. Totally 12 numerical model was built that some of them have similar configuration with experimental specimens. The results show that perpendicular non-persistent joint configuration has important effect on the failure pattern. The compressive strengths have minimum value when small joint angle were 45° and 135° . The comparison between experimental results and numerical output shows that the good accordance was established between experimental tests and numerical simulation.

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APA: Copy

Sarfarazi, V., & Mohamadi Bolban Abad, Sh.. (2021). Failure Pattern of Perpendicular Non-Persistent Joints Beneath the Point Load of TBM’ s Cutter Using Experimental Test and Finite Element Method. JOURNAL OF MINERAL RESOURCES ENGINEERING, 5(4 ), 18-22. SID. https://sid.ir/paper/990183/en

Vancouver: Copy

Sarfarazi V., Mohamadi Bolban Abad Sh.. Failure Pattern of Perpendicular Non-Persistent Joints Beneath the Point Load of TBM’ s Cutter Using Experimental Test and Finite Element Method. JOURNAL OF MINERAL RESOURCES ENGINEERING[Internet]. 2021;5(4 ):18-22. Available from: https://sid.ir/paper/990183/en

IEEE: Copy

V. Sarfarazi, and Sh. Mohamadi Bolban Abad, “Failure Pattern of Perpendicular Non-Persistent Joints Beneath the Point Load of TBM’ s Cutter Using Experimental Test and Finite Element Method,” JOURNAL OF MINERAL RESOURCES ENGINEERING, vol. 5, no. 4 , pp. 18–22, 2021, [Online]. Available: https://sid.ir/paper/990183/en

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