Effect of Process Parameters on Puncture Resistance of Composites by Needle Punching and Thermal Bonding Techniques

Abstract

This article presents the effect of process parameters on both static and puncture resistance properties of composites that were made of glass fabric and nonwovens through needle-punching and thermal bonding techniques. The experiments were conducted under varying process parameters, namely, low-Tm polyester content, needle-punched density, and nonwoven plied orientation and glass fabric angle. The significance of the process parameters is determined by analysis of variance (ANOVA). It is found that the needle-punched density and low-Tm polyester fiber content impact on the static puncture resistance interactively and significantly. Also, both nonwoven plied orientation as well as glass angle have effect on the dynamic puncture resistance, but only the former significantly influences the static puncture resistance.