Research Interests

Acoustic Emission in Reinforced Concrete Structures retrofitted with CFRP

Debonding of externally bonded carbon fiber reinforced polymer (CFRP) materials used for repair of reinforced elements is commonly observed and is often the critical limit state for such systems. The project aimed at developing an acoustic emission (AE) paradigm to monitor damage initiation, progression, and location in laboratory test specimens.

	a.) Overall Test Setup	b.) Support Condition and AE Sensor	c.) AE Sensors and Strain Gauges

Relevant publications

*Degala, S., Rizzo, P., Ramanathan, K., and Harries, K.A. (2009). “Acoustic Emission Monitoring of CFRP Reinforced Concrete Slabs,” Construction Buildings and Materials, Vol. 23, Issue 5, May 2009, pp. 2016-2026,

Degala, S, Rizzo, P., Ramanathan, K., and Harries, K.A. (2008). “Structural Health Monitoring of CFRP Reinforced Concrete by Acoustic Emission,” 5th Intl. Conf. on Adv. Composite Mat. in Bridges and Structures, ACMBS-V, submitted.

Degala, S., Rizzo, P., Ramanathan, K., and Harries, K.A., (2008). “Acoustic Emission Monitoring of FRP Reinforced Concrete,” Proceedings of SPIE’s 15th Annual International Symposium on Smart Structures and Materials – Sensors and Smart Structures Technologies for Civil, Mechanical and Aerospace System, Proc. SPIE 6935, 69351G, 11 pages.