Paper Title:
Identification of Slant Cracks in a Cantilever Beam Using Design of Experiment and Neuro-Genetic Technique
  Abstract

Cracks present a serious threat to the performance of beam-like structures. In this paper, the flexural vibration of a cantilever beam having a slant crack is considered. The beam natural frequencies are obtained for various crack locations, depths and angles, using the finite element method. These natural frequencies and crack specifications are then used to train a neural network. The input of the neural network is the crack specifications and the output is five natural frequencies of the beam. With the trained neural network, genetic algorithm is then used to determine the beam crack specifications by minimizing the differences from the measured frequencies. Simulations are performed to evaluate performance of the neural network. Results show that the proposed scheme can detect slant cracks in cantilever beams with good accuracy.

  Info
Periodical
Key Engineering Materials (Volumes 488-489)
Edited by
Z. Tonković and M.H. Aliabadi
Pages
138-141
DOI
10.4028/www.scientific.net/KEM.488-489.138
Citation
M. Hajhosseini, H. Nahvi, "Identification of Slant Cracks in a Cantilever Beam Using Design of Experiment and Neuro-Genetic Technique", Key Engineering Materials, Vols. 488-489, pp. 138-141, 2012
Online since
September 2011
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Price
$32.00
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