Studies on Methodological Developments in Structural Damage Identification
IR@SERC: CSIR-Structural Engineering Research Centre, Chennai
View Archive Info| Field | Value | |
| Title |
Studies on Methodological Developments in Structural Damage Identification
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| Creator |
Srinivas, V.
Ramanjaneyulu, K. Saptarshi Sasmal |
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| Subject |
Damage identification
transfer matrix frequency modal strain energy genetic algorithm, neural networks |
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| Description |
Many advances have taken place in the area of structural damage detection
and localization using several approaches. Availability of cost-effective
computing memory and speed, improvement in sensor technology including remotely
monitored sensors, advancements in the finite element method, adaptation
of modal testing and development of non-linear system identification methods bring
out immense technical advancements that have contributed to the advancement of
modal-based damage detection methods. Advances in modal-based damage detection
methods over the last 20-30 years have produced new techniques for examining
vibration data for identification of structural damage. In this paper, studies
carried out on damage identification methods using model- and nonmodel- based
approaches have been presented describing their effectiveness in identification, localisation
and quantification of damage. Usefulness of different parameters such
as change in frequency, mode shape, modal curvature and strain energy for detection
of damage has been studied. Further, advanced nonmodel based techniques
have also been studied for damage identification. But, most of these techniques
are found to have limitation thereby restricting their usage. Moreover, majority of
the approaches need a prior knowledge on the vibration characteristics of undamaged
structure which is quite difficult to get in most of the cases. It has been noted
that majority of the methodologies show good results in laboratory or analytical
investigations and special care is needed in choosing the methodology for damage
detection of real structures in field condition.
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| Date |
2011-05-12T04:51:14Z
2011-05-12T04:51:14Z 2009-04 |
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| Type |
Article
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| Identifier |
SDHM, Vol.5, No.2, 2009, pp.133-160
1930-2983 http://hdl.handle.net/123456789/603 |
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| Language |
en
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| Publisher |
Tech Science Press
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