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Proceedings of

International Conference on Advances In Engineering And Technology ICAET 2014

"HEALTH MONITORING AND DAMAGE ASSESSMENT BY PARAMETER ESTIMATION OF FRAMED STRUCTURES FROM STATIC RESPONSES"

JAYDEEP CHOWDHURY PRIYABRATA GUHA
DOI
10.15224/978-1-63248-028-6-03-55
Pages
277 - 282
Authors
2
ISBN
978-1-63248-028-6

Abstract: “Structural damage assessment of framed structure utilizing a sensitivity based parameter identification method is presented in this paper. A subset of applied static forces and subset of measured strains are used to identify the elemental stiffness parameters of all or a portion of a finite element model of the structure. Here we developed a method for parameter estimation of linear elastic structures using static strain measurements, preserving structural connectivity and determines the changes in cross-sectional properties, including large changes or elemental failure for stable structures. To linearize the associated non linear problem a first order Taylor series expansion is used as an iterative scheme. The algorithm automatically adjusts the structural element stiffness parameters in order to improve the comparison between a measured and theoretical response in an optimal way. In this study we have artificially generated the required measured input. The identified cross-sectional”

Keywords: Finite element model; Static strain Measurement; Damage detection;Error elimination;

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