Static, Buckling and Free Vibration Analysis of Carbon Fiber Reinforced Polymer Stiffened Composite Plates

Stiffened composite plates have been widely employed in many disciplines of structural engineering, including bridges, decks, and ship hulls due to their ease of construction, outstanding strength to weight ratio, high energy absorption, and low manufacturing cost. Stiffeners are typically utilized to boost the plate's strength. The Carbon Fiber Reinforced Polymer (CFRP) stiffened plates are modelled in this paper with the stiffener parts randomly arranged in intricate planforms. The impact of the geometric layout of stiffeners on buckling capacity, static behavior, and vibration characteristics were investigated by analytical studies. The analysis of CFRP composite plates, both with and without stiffeners, is done using the finite element program ANSYS 16.0 APDL. The composite CFRP plates' dimensions and simply supported boundary condition are the same for all combinations .The study uses a T-shaped stiffener with [0/90/45/-45] fiber orientation on the plate. The conclusion drawn from the data is that the CFRP plate's having two transverse stiffener spaced 300mm from center has a larger buckling load coefficient than its longitudinal stiffener. Comparative analysis is done between CFRP plates that have stiffener components placed arbitrarily in complex planforms and unstiffened CFRP plates.