Fatigue damage evolution in thick composite laminates: Combination of X-ray tomography, acoustic emission and digital image correlation

2019 ◽  
Vol 183 ◽  
pp. 107815 ◽  
Author(s):  
Abderrahmane Djabali ◽  
Lotfi Toubal ◽  
Redouane Zitoune ◽  
Saïd Rechak
Keyword(s):  
Acoustic Emission ◽  
Digital Image Correlation ◽  
Fatigue Damage ◽  
Digital Image ◽  
Composite Laminates ◽  
Damage Evolution ◽  
Image Correlation ◽  
X Ray

Damage Evolution of Composite Laminates with Digital Image Correlation

2010 ◽  
Vol 452-453 ◽  
pp. 377-380 ◽  
Author(s):  
Simone Giancane ◽  
Riccardo Nobile ◽  
Francesco W. Panella ◽  
Vito Dattoma
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Composite Laminates ◽  
Damage Evolution ◽  
Tensile Load ◽  
Reference Points ◽  
Image Correlation ◽  
Full Field ◽  
Two Parameters ◽  
Dic Technique

DIC (Digital Image Correlation) based methodology gives full field measure of the displacement using a well defined algorithm for matching the images of loaded and load free component, so that displacement in a plane can be evaluated for a certain number of grid reference points on the analysed surface. In this work, the authors present an application of DIC technique to analyse fatigue damage phenomena in two notched GFRC laminates under tensile load. Damage analysis based on optical DIC technique has been performed to detect the damaged areas on the specimen surface. The damage evolution and failure mechanism has been followed monitoring two parameters: the local hysteresis area of stress-strain cycles, the local stiffness variation.

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