Record Details


Field	Value

Title	Crack detection in geometrically segmented beams

Names	CHAUDHARI, TD MAITI, SK
Date Issued	1999 (iso8601)
Abstract	In this paper a method for modelling of transverse vibration of a geometrically segmented slender beam of practical importance with and without a crack normal to its axis has been proposed using the Frobenius technique. Two beam configurations have been considered. One configuration deals with three segment beam; the two end segments are of uniform depth of different dimensions and the middle segment is of linearly variable depth. The other is a two segment beam; one segment is uniform and the other has a one edge taper. The thickness is uniform along the whole length. In the presence of a crack, the crack section is represented by a rotational spring. Thereby it is possible to solve both the forward and inverse problems, The results have been compared with the analytical solutions available in the literature wherever possible. A number of numerical examples are presented to demonstrate the accuracy of the method. In the inverse problem, for the first configuration, 3.0% error is observed in the detection of crack location and the maximum error is 20% in size prediction. In the second case the errors are around 1.5% and 21% respectively.
Genre	Article; Proceedings Paper
Topic	Natural Frequencies
Identifier	DAMAS 99: DAMAGE ASSESSMENT OF STRUCTURES,167-1,343-353

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