عنوان مقاله :
Comparison of Compressive Properties between Vacuum Infusion and Hand Lay-Up Method toward Sandwich Composites Reinforced by E-Glass and Kevlar Fibers
Author/Authors :
Moslem Najafi Faculty of Engineering - South Tehran branch Islamic Azad University, Tehran , Reza Eslami Farsani , Mohammad Reza Khalili Center of Excellence for Researches in Advanced Materials and Structures - Faculty of Mechanical Engineering - K. N. Toosi University of Technology, Tehran
كليدواژه :
Strain Rate Sandwich Composites , Compressive Properties , Vacuum Infusion Processing , Hand Lay-Up Method
چكيده لاتين :
The aim of this work is to evaluate the influence of fabrication methods on the compressive properties of sandwich composites using both experimental work and numerical simulations. Two types of sandwich composites with E-Glass/Kevlar/Polyester resin facings and End-grain balsa wood as core have been produced by Vacuum Infusion Processing (VIP) and Hand-Lay up (HL) method. Compression tests on sandwich composites showed that the mean values of compressive strength of HL and VIP composites are 15.02 MPa 28.27 MPa, respectively. The performance of sandwich composites manufactured by VIP are presented and compared to the sandwich composites manufactured by HL method. Based on the experimental tests, VIP appears to produce higher results of sandwich composite compressive properties compared to the HL method. Consequently, in this work, the compressive properties of sandwich composites were characterized by finite element analysis (FEA) and a comparison of the compressive properties in various fabrication methods was then presented. The correspondence between the predicted numerical results and the experiments proves the accuracy of this model.
