Vibration of cracked structures: A state of the art review

Identification of crack location and magnitude in a cantilever beam from the vibration modes

Simplified models for the location of cracks in beam structures using measured vibration data

This paper gives an overview of the use of inverse methods in damage detection and location, using measured vibration data. Inverse problems require the use of a model and the identification of uncertain parameters of this model. Damage is often local in nature and although the effect of the loss of stiffness may require only a small number of parameters, the lack of knowledge of the location means that a large number of candidate parameters must be included. This paper discusses a number of problems that exist with this approach to health monitoring, including modelling error, environmental effects, damage localization and regularization.

/pdf/damage-identification-using-inverse-methods-4po11jghko.pdf

S. Christides

Papers

One-dimensional theory of cracked Bernoulli-Euler beams