Glass/Epoxy laminates with Novel Core Layers Under Quasi-Static Indentation: A Comparative Experimental and Numerical Study on Using Chopped Natural and Synthetic Fibers as a Core Layer

Implementation of natural fibers like kenaf in composite laminates has been the focus of researchers. This workcompares the mechanical characteristics of composite laminates composed of kenaf and glass chopped fibers and epoxyas a core and investigates the effect of hybridizing the mentioned chopped fibers as the core of a laminate. Three types oflaminates with different core materials were fabricated to do this research. The results showed that among the laminateswith the same weight, kenaf core laminate has the highest resistance against indentation and has the best performance interms of absorbed energy, peak load, and damaged region. Using chopped kenaf fiber instead of chopped glass fiber canincrease the absorbed energy and the peak load by ۳۶% and ۱۷%, respectively. Also, hybridizing the mentioned choppedfibers has not maximized the properties of the composite laminate during the QSI test. Numerical outputs agree withexperimental results.

کلیدواژه ها:

Chopped fiber ، Glass ، Kenaf ، Quasi-static indentation