Finite Element Model Updating for Damage Localisation and Quantification Using Experimental Modal Data
In this contribution we present a validation of an identification procedure and a modeling method with regard to detection, localisation and quantification of damage in a structure. Vibration measurements of an excited experimental structure are used as input for a stochastic subspace system identification algorithm. The identified experimental modal data (eigenvalues and mode shapes) serve to update the underlying finite element model. The experimental setup consists of a cantilever beam and an additional equipment to damage the structure locally and progressively. In contrast to earlier contributions the evolution of damage is quantified in order to estimate the lifetime of the structure.
W.M. Ostachowicz, J.M. Dulieu-Barton, K.M. Holford, M. Krawczuk and A. Zak
A.S. Kompalka and S. Reese, "Finite Element Model Updating for Damage Localisation and Quantification Using Experimental Modal Data ", Key Engineering Materials, Vols. 293-294, pp. 297-304, 2005