The article describes an experiment using the technique of digital image correlation (DIC) to identify and analyse defects in glass structures. The investigation involved three sets of glass structures i.e. float glass sheets, with or without any defects, and subjected them to bearing tests. The digital image correlation technique perfectly identified not only the position and size of the defect, but also the magnitude of deformations around the defect itself. Low stress values also indicate that strains concentrate around the defects. This enables the DIC method to be used to investigate the quality of glass elements, to detect the presence of defects and to monitor the most critical structural elements. The results obtained with the DIC technique were confirmed by comparing them with data gathered from the analysis of the fracture surface.
The technique of digital image correlation to identify defects in glass structures
SPERANZINI, Emanuela;AGNETTI, STEFANO
2014
Abstract
The article describes an experiment using the technique of digital image correlation (DIC) to identify and analyse defects in glass structures. The investigation involved three sets of glass structures i.e. float glass sheets, with or without any defects, and subjected them to bearing tests. The digital image correlation technique perfectly identified not only the position and size of the defect, but also the magnitude of deformations around the defect itself. Low stress values also indicate that strains concentrate around the defects. This enables the DIC method to be used to investigate the quality of glass elements, to detect the presence of defects and to monitor the most critical structural elements. The results obtained with the DIC technique were confirmed by comparing them with data gathered from the analysis of the fracture surface.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
