Muhammad, Shuaib N K
(2016)
Buckling and Post Buckling Analysis of CFRP Laminated Panel under Uniaxial Compressive Loading.
PhD thesis, Indian Institute of Technology Hyderabad.
Abstract
An experimental study has been carried out to investigate the buckling and post-buckling behavior of Carbon fibre reinforced polymer (CFRP) composite flat panel with and without hole. For the experimental study, panels were manufactured using hand-layup followed by vacuum bagging process. An appropriate fixture has been conceived and developed for realizing the simply supported boundary condition on all the edges and providing uniform compressive loading. The composite panels were then subjected to uniaxial compression loading using the MTS machine and the plates were simply supported on all the sides using specially designed fixture. Digital Image Correlation technique (DIC) is used for capturing whole field strain, axial displacement, out of plane deflection and mode shapes. Experimental buckling and post-buckling results are then compared with the finite element analysis for validation. A comparison study between plate with and without hole with respect to their buckling behaviour has also been carried out. Failure mechanism from the experiment has also been captured.
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