TJ599 : Experimental and numerical investigation of low velocity impact response of fiber mextal laminates reinforced with graphene nanoparticles
Thesis > Central Library of Shahrood University > Mechanical Engineering > MSc > 2018
Authors:
Ali Hamidi Jaldehbakhani [Author], Mahdi Gerdooei[Supervisor], Mohammad Bagher Nazari[Supervisor], [Advisor]
Abstarct: Fiber mextal Laminate (FML) composite is a compound sheet which constituted of polymeric composite and mextal sheets, and they have found numerous application in aerospace and defense structures.Subsequently, the analysis of impact load on this type of structures had attracted the attention of researchers within recent years. In this study, the behavior of fiber-mextal composite reinforced by nanographene particles under low velocity impact with both experimental and numerical approaches was investigated. Utilizing the tensile test of resin, the multilxayer industrial grade oxidized nanographene was selected as an optimum nanographene type. As well, after examining different weight percentages of nanopaticles including 0.5, 0.75, 1, 1.25 and 2%, it was indicated that adding 0.5% weight nanoparticale had a better mechanical property. Moreover, FMLs were made in different states including with and without nanographene and single and multiple oxidized nanographene, as well as blending of epoxy resin and urthan cohesive. Three distinct tests including unidirectional tensile, peeling and low velocity impact tests have been performed. The results showed that in all cases adding the nanoparticle create a better impact response on the FML specimens. Also, the peeling tests demonstrated that adding the single and multi-nanographene to epoxy resin will increase the cohesive property about 39.4% and 206%, respective. In this study, the cohesive element was simulated in Abaqus software baxse on the peeling test result. The numerical and experimental results were in a good agreement.
Keywords:
#Fiber mextal Laminates (FML) #Glass Fiber #Epoxy #Low Velocity Impact #Graphene Link
Keeping place: Central Library of Shahrood University
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