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For applications in building structures, crack detection in a composite beam using the finite element method

JOURNAL:MAZEDAN JOURNAL OF CIVIL ENGINEERING & ARCHITECTURE

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# Authors First Online DOI Downloads Citations
1. AMBUJ KUMAR PANDEY1*; SHAZIA SHAHZADI2 28 Jun 2021 0 11 0

Abstract

A finite element study has been performed for analysis and fault diagnosis in the composite beam named ALUCOBOND with different boundary conditions. The considered beam has an open transverse crack with varying thickness and location with respect to the beam dimension. The Eigen frequency of the cracked beam has been considered as a fault feature in the analysis. the finite element analysis has been accomplished through COMSOL Multiphysics 4.4. The relation of Eigen frequency with crack depth and crack location has been approved with the presentation of the figures for different mode shapes. The number of modes required the figures depend upon the number of output variable needed to find. The diagnosis of the crack in the structure has been performed with contour plotting techniques. The intersection point in the contour diagram has been used as an indication of crack location and depth. The results and their comparison with steel beam crack prediction have been presented at the end


Keywords

Crack Detection, Contour Plotting, Eigen Frequency


References
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    [5]    Patil, D. P., and S. K. Maiti. "Experimental verification of a method of detection of multiple cracks in beams based on frequency measurements.” Journal of Sound and Vibration 281.1-2 (2005): 439-451.