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Proceedings Paper

Estimation of corrosion damage to steel reinforced mortar using frequency sweeps of guided mechanical waves
Author(s): Benjamin L. Ervin; Jennifer T. Bernhard; Daniel A. Kuchma; Henrique Reis
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Paper 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.

Paper Details

Date Published: 5 April 2006
PDF: 12 pages
Proc. SPIE 6174, Smart Structures and Materials 2006: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, 61740H (5 April 2006); doi: 10.1117/12.654589
Show Author Affiliations
Benjamin L. Ervin, Univ. of Illinois at Urbana-Champaign (United States)
Jennifer T. Bernhard, Univ. of Illinois at Urbana-Champaign (United States)
Daniel A. Kuchma, Univ. of Illinois at Urbana-Champaign (United States)
Henrique Reis, Univ. of Illinois at Urbana-Champaign (United States)


Published in SPIE Proceedings Vol. 6174:
Smart Structures and Materials 2006: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems
Masayoshi Tomizuka; Chung-Bang Yun; Victor Giurgiutiu, Editor(s)

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