
Proceedings Paper
Quantitative monitoring of two-dimensional damage using envelope locating curves methodFormat | Member Price | Non-Member Price |
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Paper Abstract
Damage monitoring is of great concern to manufacturers as well as maintenance personnel for significantly improving safety
and reliability of aircrafts. Delamination and corrosion are among the most interested types of damage which the industries
want to monitor for composites and metals correspondingly. In plate-like structures, the aforementioned damage can all
practically be treated as 2-dimensional damage. Many progresses have been made on monitoring the location of the damage;
however, to monitor the size of the damage is still very challenging. It is known from dynamic theory that elastic waves will
be scattered and reflected at the interface of two different media. Thus scattered and reflected waves will be generated at the
boundaries of the damage. By analyzing these scattered and reflected waves, the boundaries of the damage can be determined,
then, not only the location, but also the size of 2-dimensional damage can be given. In this study, to get as exact monitoring
results as possible, two types of locating curves are used: one type acquired by pitch-catch mode and the other type by pulseecho
mode. By taking the inner most locating curves, the boundaries of the damage can be given. Experimental results
showed that the size of ahole damage can be monitored quite well by the envelop locating curves method.
Paper Details
Date Published: 17 April 2013
PDF: 8 pages
Proc. SPIE 8695, Health Monitoring of Structural and Biological Systems 2013, 86951C (17 April 2013); doi: 10.1117/12.2009580
Published in SPIE Proceedings Vol. 8695:
Health Monitoring of Structural and Biological Systems 2013
Tribikram Kundu, Editor(s)
PDF: 8 pages
Proc. SPIE 8695, Health Monitoring of Structural and Biological Systems 2013, 86951C (17 April 2013); doi: 10.1117/12.2009580
Show Author Affiliations
Chaoliang Du, Beijing Aeronautical Science and Technology Research Institute (China)
Peking Univ. (China)
Yishou Wang, Beijing Aeronautical Science and Technology Research Institute (China)
Dalian Univ. of Technolg (China)
Peking Univ. (China)
Yishou Wang, Beijing Aeronautical Science and Technology Research Institute (China)
Dalian Univ. of Technolg (China)
Jian Cai, Beijing Aeronautical Science and Technology Research Institute (China)
Xinlin Qing, Beijing Aeronautical Science and Technology Research Institute (China)
Xinlin Qing, Beijing Aeronautical Science and Technology Research Institute (China)
Published in SPIE Proceedings Vol. 8695:
Health Monitoring of Structural and Biological Systems 2013
Tribikram Kundu, Editor(s)
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