A comparative study of crack growth mechanisms in concrete through acoustic emission analysis: Monotonic versus fatigue loading

Radhika, V and Chandra Kishen, JM (2024) A comparative study of crack growth mechanisms in concrete through acoustic emission analysis: Monotonic versus fatigue loading. In: Construction and Building Materials, 432 .

PDF Con_bui_mat_432_2024.pdf - Published Version Restricted to Registered users only Download (10MB) | Request a copy

Abstract

Acoustic emission (AE) is one of the most effective techniques for studying internal microcracking in concrete. This study aims to investigate the fracture behaviour and damage mechanisms in plain concrete specimens under monotonic and fatigue loading by employing various AE analysis techniques. A parametric study of the AE data collected from twelve beam specimens under three-point bending is conducted. The study concludes that average frequency versus rise angle analysis and intensity analysis can identify structural damage occurrences and provide insights into potential failure. Additionally, by applying k-means clustering to AE data, four distinct damage mechanisms in plain concrete are identified. © 2024 Elsevier Ltd

Item Type:	Journal Article
Publication:	Construction and Building Materials
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to Elsevier Ltd.
Keywords:	Acoustic emission testing; Concretes; Cracks; Fatigue damage; Fracture mechanics; K-means clustering; Structural analysis, Acoustic emission analysis; Acoustic emission data; Damage mechanism; Fatigue behavior of concrete; Fatigue behaviour; Fatigue loadings; Intensity analysis; Plain concrete; Shear crack; Tensile crack, Cluster analysis
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	07 Jun 2024 12:44
Last Modified:	07 Jun 2024 12:44
URI:	http://eprints.iisc.ac.in/id/eprint/85102

Actions (login required)

View Item