Damage Assessment of FRP Composite Materials using Izod Test
Volume 5, Number 5, October 2009 - Paper 7 - pp. 479-484
D. R. PRAJAPATI and RAJIV SHARMADepartment of Mechanical Engineering, Punjab Engineering College, Chandigarh-160012, India.
(Received on August 25, 2008, revised on February 20, 2009)
Fiber reinforced plastics (FRP) materials are susceptible to impact damage. So impact testing has been done to study the effect of impact because a little impact can lead to catastrophic failure in marine or aerospace where these materials are being used. These materials have also resistance to corrosion along with weight saving properties. In this paper, comparison of experimental and theoretical values for mean energy absorbed in FRP materials, using izod test is presented for notch radii of 0.25 mm, 0.5 mm and 0.75 mm. The experiment shows that the experimental (actual) absorbed energy is less than the theoretical absorbed energy. Energy absorbed by a test sample decreases with increase in notch radius. Results also show that the energy absorbed by the specimen reduces by approximately 10% when the notch radius is doubled.
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