The study of interlaminar fracture resistance of NH2-CNT reinforced fiber metal laminates using modified asymmetric DCB geometry
Publish place: The 6th International Conference on Composites: Characterization, Fabrication and Application
Publish Year: 1397
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
COMPOSIT06_009
تاریخ نمایه سازی: 31 تیر 1398
Abstract:
This paper studies the incorporation effect of amino-functionalized carbon nanotubes (CNTs) on the interlaminar fracture energy of carbon fiber Aluminum (Al) laminate. The paper also tries to decrease asymmetry of fiber metal laminates (FMLs) when subjected as a double cantilever beam (DCB) specimens to study the interlaminar resistance between metallic and polymeric layers in mode I. For an asymmetric specimen, the mixed-mode (I+II) interlaminar fracture energy instead of pure mode I is appeared. Therefore in the current research a carbon fiber Al laminate with sub-layer sequence of Al/[C]02/Al/[C]02 was proposed instead of traditional Al/[C]04/Al DCB specimen. It was observed that by applying geometry correction, the angle of asymmetry decreased from 5° to 2° at crack length of 100 mm. The presence of 0.2 wt% of functionalized-CNTs in the interface between Al and polymeric layers increased 34% of critical fracture energy (GIC) in the FML
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Authors
M.D Shokrian,
Division of Plastics and Composites Engineering, Department of Mechanical Engineering, University of Tabriz, Tabriz ۵۱۶۶۶-۱۴۷۶, Iran
K Shelesh-Nezhad,
Division of Plastics and Composites Engineering, Department of Mechanical Engineering, University of Tabriz, Tabriz ۵۱۶۶۶-۱۴۷۶, Iran
R Najjar
Polymer Research Laboratory, Faculty of Chemistry, University of Tabriz, ۵۱۶۶۶۱۶۴۷۱, Tabriz, Iran