Fracture assessment of small and large-scale steel fibre reinforced concrete specimens using acoustic emission and digital image correlation techniques
Year: 2025
Type: conference-paper
Abstract: The fracture assessment of concrete and concrete composites using Digital Image Correlation (DIC) and Acoustic Emission (AE) techniques is commonly performed on small-scale laboratory specimens, with findings then extrapolated to large-scale structures.DIC provides detailed surface displacement and macrocrack visualization, while AE offers real-time tracking of micro and macro cracks.However, in real-world scenarios, factors such as structural geometry, variations in loading and background noise can significantly affect AE and DIC data, making interpretation challenging.This study examines small-scale standard notched Steel Fiber Reinforced Concrete (SFRC) beams and large-scale precast SFRC tunnel segments under three-point bending (3PB) to conduct a comparative analysis of fracture behaviour.The influence of tunnel geometry, casting methods, and loading conditions on fracture behaviour is emphasized.The similarities and differences in fracture mechanisms between small-scale beams and large-scale tunnel segments are identified.
DOI: 10.21012/fc12.1181
Authors: Roshini Ramanathan, Keerthana Kirupakaran
Institution: Indian Institute of Technology Madras
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
OpenAlex ID: W4409430927