Structural integrity assessment of cable structure : From laboratory to industry

Afandi, Nurul Fahimah (2023) Structural integrity assessment of cable structure : From laboratory to industry. Project Report. Melaka, Malaysia, Universiti Teknikal Malaysia Melaka. (Submitted)

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Abstract

Within engineering and building projects, strain and displacement are significant characteristics. Outside of the lab, however, measuring these parameters necessitates a tough choice between established procedures, as precision, simplicity, and cost must all be considered. Digital Imaging Correlation (DIC) is a technique that has the potential to be great for studying crack propagation and structural deformation in real-world applications since it is a cheap, easy, and precise solution. DIC has traditionally been used on grayscale photos captured with monochromatic cameras, but with the development of digital colour cameras, Color DIC may now be used on colour images.Color pictures are predicted to provide more information, hence the same subset size for Color DIC should produce better results than typical grayscale DIC. The influence of varying sizes of speckles in speckle patterns and different forms of deformation on the performance of Color DIC and grayscale DIC is investigated in this study. Images were numerically created and speckle patterns and deformations were simulated. The findings imply that, in general, colour DIC produces superior outcomes than grayscale DIC. The amount of improvement in Color DIC performance is determined on the size of the speckles that escape the image and the type of deformation. In most cases, improvement is greatest for small subset sizes and diminishes as the subset size grows larger.It was also discovered that for complicated and nuanced deformation circumstances, grayscale DIC outperforms colour DIC if the selected subset is greater than a specified subset size, commonly referred to as "ideal subset size."

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