Flexural behavior of sandwich structures with a hybrid carbon nanotube/short carbon fiber foam core and debonded skin/core interface
Alireza Moradi, R. Ansari, Mohammad Kazem Hassanzadeh‐Aghdam, Jamaloddin Jamali
Abstract
Effects of incorporating carbon nanotubes (CNTs) and short carbon fibers (SCFs) into the polyvinyl chloride (PVC) foam core on the flexural behavior of sandwich beams are investigated. Upper and lower skins are made of laminated composites and an initial debonded interface among the upper skin and core is considered. The mechanical properties of the hybrid CNT/SCF/PVC core are determined employing micromechanical models. To inspect the flexural behavior of sandwich beams at macro-scale, end notched shear (ENS) test is simulated using the finite element method (FEM). The results indicate an increase in flexural stiffness in the presence of CNT and SCF.
Topics & Concepts
Materials scienceCarbon nanotubeFlexural strengthComposite materialCore (optical fiber)Sandwich-structured compositeFinite element methodStiffnessThree point flexural testStructural engineeringEngineeringMechanical Behavior of CompositesCellular and Composite StructuresFiber-reinforced polymer composites