This paper presents a non-contact and non-destructive method for full-field in-plane strain measurements. Digital image processing is employed for monitoring the deformations of grid lines marked on a planar surface of a component or a specimen. Full-field in-plane strain distributions are obtained by processing the geometrical characteristics of the grid with computer graphics algorithms. The strain field determined in the necking zone of a tensile specimen has demonstrated the benefit of the method.

Grid pattern for in-plane strain measurements by digital image processing

BARONE, SANDRO;BEGHINI, MARCO;BERTINI, LEONARDO
2001

Abstract

This paper presents a non-contact and non-destructive method for full-field in-plane strain measurements. Digital image processing is employed for monitoring the deformations of grid lines marked on a planar surface of a component or a specimen. Full-field in-plane strain distributions are obtained by processing the geometrical characteristics of the grid with computer graphics algorithms. The strain field determined in the necking zone of a tensile specimen has demonstrated the benefit of the method.
Barone, Sandro; Beghini, Marco; Bertini, Leonardo
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/176991
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