Abstract
Composite materials are prone to delamination as they are weaker in the thickness direction. Carbon nanotubes (CNTs) are introduced as a multiscale reinforcement into the fiber reinforced polymer composites to suppress the delamination phenomenon. This review paper presents the detailed progress made by the scientific and research community to-date in improving the Mode I and Mode II interlaminar fracture toughness (ILFT) by various methodologies including the effect of multiscale reinforcement. Methods of measuring the Mode I and Mode II fracture toughness of the composites along with the solutions to improve them are presented. The use of different methodologies and approaches along with their performance in enhancing the fracture toughness of the composites is summarized. The current state of polymer-fiber-nanotube composites and their future perspective are also deliberated.
Highlights
Composites laminates of carbon fiber reinforced plastic (CFRP) are generally created by aligning several sheets of CFRP or prepregs followed by curing and consolidation at the same time
Of the the matrix resin be dramatically enhanced by the proper usethe of interlaminar the Carbon nanotubes (CNTs)
Surface was areaincreased and are with very the flexible, having an atability to dissipate energy during the carbonInfiber laminate wasimprovement prepared in situ with CNTs CNTs by Kepple al. [210]
Summary
Composites laminates of carbon fiber reinforced plastic (CFRP) are generally created by aligning several sheets of CFRP or prepregs followed by curing and consolidation at the same time. The interlaminar stresses cause plies or groups of plies in a laminate to separate from each other, leading to a phenomenon called, delamination This initiates and propagates in the matrix layers intervening the reinforcement plies of the composite system, limiting their life and performance. There is a tremendous loss ofand strength anddue stiffness due to interlaminar fracture raises serious concerns about the the safety andand reliability of the composite structure. Previous research pertaining to interlaminar fracture interlaminar fracturehas in been composite materials has reported et Schoeppner al.
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