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Title: Structural damage measure index based on non-probabilistic reliability model
Authors: Wang, X
Xia, Y 
Zhou, X
Yang, C
Issue Date: 2014
Source: Journal of sound and vibration, 2014, v. 333, no. 5, p. 1344-1355
Abstract: Uncertainties in the structural model and measurement data affect structural condition assessment in practice. As the probabilistic information of these uncertainties lacks, the non-probabilistic interval analysis framework is developed to quantify the interval of the structural element stiffness parameters. According to the interval intersection of the element stiffness parameters in the undamaged and damaged states, the possibility of damage existence is defined based on the reliability theory. A damage measure index is then proposed as the product of the nominal stiffness reduction and the defined possibility of damage existence. This new index simultaneously reflects the damage severity and possibility of damage at each structural component. Numerical and experimental examples are presented to illustrate the validity and applicability of the method. The results show that the proposed method can improve the accuracy of damage diagnosis compared with the deterministic damage identification method.
Publisher: Academic Press
Journal: Journal of sound and vibration 
ISSN: 0022-460X
EISSN: 1095-8568
DOI: 10.1016/j.jsv.2013.10.019
Rights: © 2013 Elsevier Ltd. All rights reserved.
This is an Author's Accepted Manuscript of an article published in Wang, X., Xia, Y., Zhou, X., & Yang, C. (2014). Structural damage measure index based on non-probabilistic reliability model. Journal of Sound and Vibration, 333(5), 1344-1355. The open URL of the article: http://dx.doi.org/10.1016/j.jsv.2013.10.019
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