Development of a finite element model updating technique for estimation of constituent level elastic parameters of FRP plates

Asim Kumar Mishra and Sushanta Chakraborty

Applied Mathematics and Computation, 2015, vol. 258, issue C, 84-94

Abstract: A methodology has been developed combining the experimental modal testing and finite element technique to determine the constituent level fiber and matrix elastic properties of fiber reinforced plastics (FRP) composite plates. The methodology implements an inverse eigensensitivity algorithm based on the minimization of error function defined by weighted difference of eigenvalues and mode-shapes. The method is robust against modal and coordinate sparsity, even under random noise. The proposed model updating technique can be deployed for rapid assessment of degrading elastic properties at the constituent level for existing FRP structures in-situ; thus is suitable for health monitoring exercise.

Keywords: Laminates; Mechanical properties; Finite element analysis (FEA); Non-destructive testing; Finite element model updating (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:258:y:2015:i:c:p:84-94

DOI: 10.1016/j.amc.2015.02.003

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