Estimation of corrosion damage to steel reinforced mortar using frequency sweeps of guided mechanical waves

Benjamin L. Ervin; Jennifer T. Bernhard; Daniel A. Kuchma; Henrique Reis

doi:10.1117/12.654589

5 April 2006 Estimation of corrosion damage to steel reinforced mortar using frequency sweeps of guided mechanical waves

Benjamin L. Ervin, Jennifer T. Bernhard, Daniel A. Kuchma, Henrique Reis

Author Affiliations +

Proceedings Volume 6174, Smart Structures and Materials 2006: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems; 61740H (2006) https://doi.org/10.1117/12.654589
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2006, San Diego, California, United States

Abstract

A frequency sweep from 50 to 200 kHz of guided mechanical waves have been conducted to detect and assess corrosion damage in steel reinforced mortar specimens with seeded defects and in specimens undergoing accelerated corrosion using impressed current. The sweep was conducted by invoking primarily the fundamental longitudinal mode of propagation, i.e., the L(0,1) mode. The decay of waveform energy (indicative of attenuation) at different frequencies is presented and discussed in terms of corrosion damage. Experimental results indicate that the percentage of corrosion damage can be detected and evaluated invoking the fundamental longitudinal mode of propagation.

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Benjamin L. Ervin, Jennifer T. Bernhard, Daniel A. Kuchma, and Henrique Reis "Estimation of corrosion damage to steel reinforced mortar using frequency sweeps of guided mechanical waves", Proc. SPIE 6174, Smart Structures and Materials 2006: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, 61740H (5 April 2006); https://doi.org/10.1117/12.654589

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