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Multiple Crack Detection in Cantilever Beam by Vibrational Analysis - A Review

Author(s):

Heera Lal Choudhary , SRIT, Jabalpur (M.P) ; Jayant Koshta, SRIT, Jabalpur (M.P) ; Anshul Choudhary, SRIT, Jabalpur (M.P)

Keywords:

Vibration Based Detection, Multiple Crack, Crack Location & Crack Depth, Natural Frequency, Frequency Contour Line

Abstract

Beam type structures are being commonly used in steel construction and machinery industries, in structures and machines, and fatigue cracks are the main cause of beams failure. Crack occurs in beams to change its dynamic behavior of structure and examining these changes in crack location and crack size are identified. The NDT methods are used for crack detection and which are costly and time consuming. In this paper the beam consider to open transverse cracks. Currently research has focused on using modal parameters i.e. natural frequency used for crack detection. In this paper the modal analysis was performed on cracked beams and a healthy beam, to calculate natural frequency. The first five natural frequencies wear considered for crack detection. To locate the crack i.e. crack depth and crack locations are plotted. The intersection of these contours indicates crack location and crack depth, hence to detect multiple cracks. The experimental results are obtained by using FFT analyzer. Finally the ANSYS result compare with experimental result.

Other Details

Paper ID: IJSRDV6I80155
Published in: Volume : 6, Issue : 8
Publication Date: 01/11/2018
Page(s): 193-196

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