Abstract
The aim of this study is to investigate the effect of clay nanoparticles on the strength of a hybrid sandwich structure with polyurethane foam core with two different densities. The sandwich structure is made of E-glass woven fabric and basalt fiber. Different percentages of clay nanoparticles are 0.0%, 0.1%, 0.3% and 0.5%, respectively. Furthermore, polyurethane foam with two densities of 40 and 140 (kg/m3) was used for the core of the sandwich structure. By force-displacement diagram obtained from quasi-static impact, the experimental studies of the effect of clay nanoparticles and polyurethane foam with different densities in this type of structure were performed. In addition, crashworthiness features including crush force efficiency and energy absorption capability were discussed. Finally, images of the damage surface and the cut view were taken and the results were reported in order to scrutinize the damage in the hybrid structure. The results indicate that with the increase of clay nanoparticles in the resin of the hybrid structure, the performance of the structure against the indenter effect is improved and displays good resistance. Furthermore, the strength of the structure is enhanced by increasing the density of polyurethane foam. Holistically, polyurethane foam prevents the spread of damage in all structures. In samples with foam with a density of 40 (kg/m3), the hybrid structure with 0.0% Nano absorbs more energy and in samples with foam with a density of 140 (kg/m3), has less energy absorption.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call