Structural Integrity Assessment of Concrete Sleepers by Modal Test Technique

• Published in: Materials Vol. 16; no. 16; p. 5614
• Main Authors: Choi, Jung-Youl, Shin, Tae-Hyung, Kim, Sun-Hee, Chung, Jee-Seung
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 14.08.2023; MDPI
• Subjects: Concrete; concrete sleeper; Cracks; Finite element analysis; Frequency analysis; Hammers; Impact damage; Inspection; modal testing; Numerical analysis; Performance evaluation; Prestressed concrete; Railway engineering; Resonant frequencies; Structural integrity; structural performance; Tomography; Trains; South Korea

Concrete sleepers used in railway engineering are subject to damage, such as cracks and breakage. Damaged concrete sleepers undergo changes to their material and structural properties, including response, mode shape, and natural frequency. Therefore, we have proposed modal testing in this study to q...