Strength evaluation of self-healing hybrid laminates reinforced by unidirectional spread carbon fibers and woven carbon fibers

Abstract

This study examines the effect of laminate configuration and microcapsule concentration on the mechanical properties of carbon fiber/epoxy (EP) laminates containing microcapsules. The reinforcements used in this study were spread carbon fiber (SCF) and woven carbon fiber (WCF). SCF/EP, WCF/EP and SCF/WCF/EP laminates were evaluated by short beam shear testing and four-point bending testing to assess apparent interlaminar shear strength and apparent bending strength. The apparent interlaminar shear strength and apparent bending strength of WCF/EP and SCF/WCF/EP laminates with microcapsules was higher than that of SCF/EP laminates with microcapsules.