Numerical Investigations on GFRP beam with Delaminations

Usage of composites have rapidly increased in various applications likeaerospace, marine, automotive; because of their superior fatigue properties, good strength to weight ratio, corrosion resistance, etc. This work focus on Glass fibre Reinforced Polymer (GFRP) composite with epoxy as matrix, as it is the most commonly usedfibre with high strength and low cost. Numerical analysis on GFRP samples with and without delaminations having same stacking sequence and eight layers were done using ANSYS mechanical APDL software. It is observed that Natural Frequencies is varying according to changes in delaminations parameters.