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"
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;