TESTING THE FLEXURAL FATIGUE BEHAVIOR OF E-GLASS EPOXY LAMINATES

Vijaykiran Bura, Praveen.Dvr

Abstract: With the advent of fiber reinforced composite materials the application of polymer composite materials is increasing in aerospace, marine and automobile fields, and non-conventional energy harvesting sectors in view of deriving advantages of polymer composites towards enhancing the equipment performance. Composites are replacing the conventional materials almost in every application. Due to their high specific strength, stiffness, better fatigue life, wear resistance and corrosion resistance. So polymer composites play a vital role in weight reduction with better functional characteristics of critical components like leaf spring, wheel drum, crash bumper etc. The tailor-designing capability with composite materials provides large scope of mechanical properties by adopting advanced design techniques. The tailored properties of laminated composite throws a challenge on design engineers to arrive at optimum design solutions. The flexural fatigue failure is common in rotating components such as wind turbine rotors and aero plane wing structures. The present work is focusing on flexural fatigue failure behavior with the help of flexural fatigue test rig established in the mechanical engineering department of JNTU. The explicit work publishes the experimental test results to understand the influence of frequency on the fatigue failure behavior due to cyclic flexing loads on the glass epoxy laminates

Keywords: fiber, flexure, matrix, composite, lamina, polymer

DOI: https://doi.org/10.15623/ijret.2014.0308037