TRANSVERSE LOADING OF JOINTS IN CARBON/EPOXYCOMPOSITES

摘要

Composite structures are finding greater use in military and aerospace applications as structural, loadbearing components. The study of bonded joints in structural composites has become an area of interest,as this is the most favorable method of joining composites, and possibly the ‘weakest link’ in thestructure. Composite structures are prone to impact loading such as from bullets, fragments, or flyingdebris. The present work investigates the effect of transverse loading of adhesive joints withcarbon/epoxy composite adherends. The adherends, prepared through Vacuum Assisted Resin TransferMolding (VARTM), were used to prepare joints with three different adhesive systems. Resinfusion 8604epoxy, nanoclay reinforced epoxy and a paste adhesive Magnabond 6398. Finite Element Modeling(FEM) of the failure of adhesively bonded joints under transverse impact loading condition was carriedout using LS-DYNA 3D software.