Digital Image Correlation Technique Application On Welded Joint - Advantages And Disadvantages

Abstract

Presented in this paper is the application of a non-contact digital image correlation (DIC) measuring method, including the methodology for non-contact testing technique with two cameras (stereometric method). Different examples of optical measuring methods used on welded joints are presented, along with its results, possibility of results presentation, advantages and disadvantages which can somewhat limit the application of this measuring technique to objects with a heterogeneous structure i.e. welded joint. The application of this method is shown on two welded plate specimens made of micro-alloyed steel P460NL1 during their deformation. Obtained results were analyzed and can indicate the further detailed examinations of specified parts of welded joint.