M.A Rastak - Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, Schoolof Mechanical Engineering, Iran University of Science and Technology, Tehran, ۱۶۸۴۶-۱۳۱۱۴, Iran
M.M Shokrieh - Professor-Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School
L Barrallier - Professor-MSMP Laboratory, Arts et Métiers ParisTech, ۲, Cours des Arts et Métiers, ۱۳۶۱۷, Aix-en-Provence, France
R Kubler - MSMP Laboratory, Arts et Métiers ParisTech, ۲, Cours des Arts et Métiers, ۱۳۶۱۷, Aix-en-Provence, France

In this paper, by using the digital image correlation (DIC) as an optical method and theincremental hole drilling method, residual stresses in laminated polymer composites have been studied. Inprevious studies, the rosette strain gauge has been used to measure the released strain values around the edgeof the hole. The released strain gradients around the hole are too intense and strain gauges are located in adistance far from that location. Therefore, the measured strains are a rough average value of an intensevariation of strain under the strain gage area. In this study, strain values released in close areas of the holewere measured by using DIC method. For compare the results, the available results by the ClassicalLamination Theory (CLT) provided. The good similarity of the order of the residual stress results betweenDIC and CLT methods has been found.

Laminated Composites, Residual Stresses, Incremental Hole-Drilling Method, Digital Image Correlation,Classical Lamination Theory