Crack Width Estimation Using Feed and Cascade Forward Back Propagation Artificial Neural Networks

Abstract:

Automatic crack inspection techniques that limit the necessity of human have the potential to lower the cost and time of the process. In this study, a maximum crack width estimation approach is presented. Seventy nine segments of cracks are used for training the neural networks and twenty six segments are used for examination. The maximum width for each segment is measured using laser scanning microscope and segment image is captured and magnified using the microscope camera in order to obtain the extracted crack profile number of pixels. Feed and cascade forward back propagation artificial neural networks are designed and constructed. The input and output for the networks are the crack width in terms of number of pixels and the maximum estimated crack width respectively. It is shown that, the artificial neural networks technique can effectively be used to estimate the crack width. The feedforward back propagation structure which is designed with two layers and training function TRAINLM gives the best results in examination.

• Periodical: Key Engineering Materials (Volume 786)
• Pages: 293-301
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.786.293
• Online since: October 2018
• Authors: Hesham M. Shehata*, Yasser S. Mohamed, Mohamed Abdellatif, Taher H. Awad
• Keywords: Automatic Crack Detection, CFBP ANNs, FFBP ANNs, Image Processing, Steel Crack Inspection, Width Measurement

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