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Numerical and Experimental Evaluation of the Effects of Ply Thickness on Progressive Damage in CFRP Laminates
Abstract
The purpose of this study is to evaluate the effects of ply thickness on the progressive damage in thin-ply composite laminates experimentally and numerically. To investigate the influence of the ply thickness on the damage growth, loading and unloading tests were carried out on angle-ply and quasi-isotropic laminates with three different ply thicknesses. The damage evolution was evaluated quantitatively using continuum damage mechanics model. The evolution laws of damage in thin-ply composites were formulated from the experimental data considering the effects of ply thickness. A damage simulation combining finite element analysis and the proposed damage model was conducted to predict the damage progress and strength of thin-ply laminates with several ply thicknesses. The simulation results were compared with the experimental data for the validation of the simulation method.
DOI
10.12783/asc35/34947
10.12783/asc35/34947