Open Access Journal

ISSN : 2394-2320 (Online)

International Journal of Engineering Research in Computer Science and Engineering (IJERCSE)

Monthly Journal for Computer Science and Engineering

Open Access Journal

International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE)

Monthly Journal for Mechanical and Civil Engineering

ISSN : 2456-1290 (Online)

Non-Destructive testing using Digital Image Correlation

Author : Suraj W. Jagtap 1 M. V. Bhogone 2

Date of Publication :24th January 2018

Abstract: This paper presents a new optical method referred to as Digital Image Correlation (DIC). It permits full-field measurement of surface displacements. DIC works by comparing digital photographs of a component or test piece at different stages of deformation. By tracking blocks of pixels, the system can measure surface displacement and build up to full field 2D and 3D deformation vector fields and strain maps. Software techniques have been developed to obtain sub-pixel resolutions and allow efficient execution of the algorithms. Images can be obtained from a wide variety of sources including conventional charge-coupled device (CCD) image sensors or digital cameras. The DIC correlation process is not restricted to optical images and can also be applied to other datasets such as surface roughness maps and 2D surfaces of structures like tunnels. Theory of the method as well as its applications to strain measurements and nondestructive testing are presented further

Reference :

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