Samadhan, SA and Vidya Sagar, R (2022) Effect of Notch-to-Depth Ratio and Steel Fiber Volume Fraction on Acoustic Emissions Generated During Mode I Fracture Process in Steel Fiber Reinforced Concrete. In: Virtual Seminar on Applied Mechanics, VSAM 2021, 28-29 May 2021, Virtual, Online, Chennai, pp. 637-651.
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This article reports the effect of notch to depth ratio (α) and steel fiber volume fraction (Vf) on Acoustic Emissions (AE) generated during Mode I fracture process in Steel Fiber Reinforced Concrete (SFRC). The Plain Concrete (PC) and SFRC Three-Point Bend (TPB) specimens were tested by following EN: 14651-2005, RILEM TC 162-TDF, RILEM TC FMC-50 and JCI-S-001-2003 by CMOD control. Simultaneously, the AE signal waveforms were recorded by using eight AE channel monitoring system. The 2D surface strains and displacements were also recorded using Digital Image Correlation (DIC) technique. The spikes in the cumulative AE energy versus time plot were observed at the instants where sudden drops in the post peak load carrying capacity occurred. Peak load, Fracture energy, AE energy and post peak ductility decreased with increasing α value. The fiber bridging mechanism in SFRC was explored using the concept of crack kinematics with the DIC technique. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
| Item Type: | Conference Paper |
|---|---|
| Publication: | Lecture Notes in Mechanical Engineering |
| Publisher: | Springer Science and Business Media Deutschland GmbH |
| Additional Information: | The copyright for this article belongs to Springer Science and Business Media Deutschland GmbH |
| Department/Centre: | Division of Mechanical Sciences > Civil Engineering |
| Date Deposited: | 23 May 2022 06:37 |
| Last Modified: | 23 May 2022 06:37 |
| URI: | https://eprints.iisc.ac.in/id/eprint/72053 |
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