TITLE:
Effect of Core Thickness and Core Density on Low Velocity Impact Behavior of Sandwich Panels with PU Foam Core
AUTHORS:
Sunith Babu Loganathan, Hanumanahally Kambada Shivanand
KEYWORDS:
Sandwich Panels, Polyurethane Foam, Specific Energy Absorption Factor, Low Velocity Impact Test
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.3 No.3,
May
4,
2015
ABSTRACT: Composite sandwich structures are highly proven materials that provide high strength to weight
ratio. However research works are still being carried out in the area of impact characteristics of
sandwich composites. This paper provides a better understanding on the effect of core density and
core thickness of sandwich panels subject to low velocity drop test. Specific energy absorption capacity
of sandwich panels is obtained and factors affecting the same are explored with facings
made of woven glass fiber laminates and polyurethane foam core with three different densities of
70 Kg/m3, 100 Kg/m3, 200 Kg/m3.