jfet.13.1.13758 Quasi-Static Indentation Tests on Polyurethane and Phenolic Foam Sandwich Panels Syed Mudassir M. Manzoor Hussain D.V. Ravi Shankar Journal on Future Engineering and Technology 2230–7184 13 1 15 21 10.26634/jfet.13.1.13758 Polyurethane, Phenolic Foam, Quasi-static Indentation Test, Glass Fiber, Energy Absorption Mechanical response and energy absorption of polyurethane and phenolic foam sandwich composite panels subjected to quasi-static indentation loads were investigated experimentally. These sandwich panels consisted of two glass-fiber face-sheets and PU and Phenolic foam cores. Quasi-static indentation tests were conducted using an UTS-40 universal testing machine, with sandwich panels in fully fixed condition. Load-displacement curves were recorded and the total energy absorbed by sandwich panels was calculated accordingly. Photographs and video recordings were carried out to observe the deformation of top face sheets, foam cores, and bottom face-sheets. The main objective of this work was to study the energy absorption behaviour of different sandwich composite laminates under Quasi-static indentation. Load-deflection results were obtained from experimental tests using hemisphere indenter for different sandwich composite laminates. The energy absorbing capacity of sandwich laminates linearly increased with the increase in foam thickness. The effects of face-sheet thickness, core thickness, and energy absorption of sandwich panels are also discussed. August - October 2017 Copyright © 2017 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=13758