Comparative study of electromechanical impedance and lamb wave techniques for fatigue crack detection and monitoring in metallic structures

• Main Authors: Lim, Say Ian, Liu, Yu, Soh, Chee Kiong
• Other Authors: School of Civil and Environmental Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Materials::Metallic materials
• Online Access: https://hdl.handle.net/10356/96002; http://hdl.handle.net/10220/10064
• Institution: Nanyang Technological University

Fatigue cracks often initiate at the weld toes of welded steel connections. Usually, these cracks cannot be identified by the naked eyes. Existing identification methods like dye-penetration test and alternating current potential drop (ACPD) may be useful for detecting fatigue cracks at the weld toe...