Experimental Investigation on Crack-Arresting Mechanism of Steel Fibre-Reinforced Concrete Prism Specimens Using DIC and AE Techniques

Lakavath, Chandrashekhar and Bhosale, Aniket and Prakash, S Suriya (2020) Experimental Investigation on Crack-Arresting Mechanism of Steel Fibre-Reinforced Concrete Prism Specimens Using DIC and AE Techniques. Lecture Notes in Civil Engineering, 74. pp. 51-65. ISSN 2366-2557

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Abstract

In this experimental study, the effect of steel fibre (SF) reinforcement on the fracture energy and crack propagation in notched beams is investigated by using digital image correlation (DIC) as well as acoustic emission (AE) techniques. The considered variable in this experimental programme is SF volume fractions of 0, 0.5, 0.75 and 1.0%. Crack-arresting mechanism in fibre-reinforced concrete (FRC) beams was investigated at a few key points in load-CMOD response. From DIC it is observed that in the higher fibre volume fraction beams, the strain redistribution is more and crack propagation is minimum up to serviceability limit. Similarly, the AE hits classification is presented to understand the crack fracture mechanism. Both the DIC and AE study help in understanding the crack propagation on the surface as well as fracture process zone (FPZ) advancement through the SFRC beams.

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IITH Creators:

IITH Creators	ORCiD
Prakash, Suriya S	UNSPECIFIED

Item Type:

Article

Uncontrolled Keywords:

Acoustic emission techniques; Crack arresting; Crack fracture mechanism; D. digital image correlation (DIC); Experimental investigations; Fibre volume fraction; Fracture process zone; Notched beam;Concrete beams and girders; Crack propagation; Cracks; Fiber reinforced materials; Fracture; Reinforced concrete; Shotcreting; Steel fibers; Volume fraction

Subjects:

Civil Engineering

Divisions:

Department of Civil Engineering

Depositing User:

. LibTrainee 2021

Date Deposited:

28 Jul 2021 07:35

Last Modified:

04 Mar 2022 07:19

URI:

http://raiithold.iith.ac.in/id/eprint/8556