Comparison of elastic properties of different shaped particle reinforced composites using micromechanics and finite element method

Abstract

In this work, differently shaped carbon nano-sized allotropes reinforced composite properties are estimated and interfacial stresses are calculated and compared to get the best carbon reinforcement. Carbon nanopowder, carbon nanotubes, nanographene and Buckminster fullerenes are selected as these materials have different shapes and reinforcement of these materials in the aluminium matrix will give different properties. The comparative studies are performed by using the Micromechanics and Finite element method. The longitudinal, transverse modulus, Poisson’s ratio are estimated along with the interface stresses between the constituents of carbon power/Al matrix composite, fullerene/Al matrix composite, CNT/Al matrix composite and graphene/Al matrix composite. From this work, it is found that the longitudinal modulus of the composite will be higher by using CNT or Graphene reinforcement and carbon particle or Buckminster fullerene reinforcement will give high transverse modulus than CNT and graphene reinforcement. The interfacial stresses generated between the reinforcement and the Aluminum matrix will be less by using carbon nanopowder than the other allotropes consider for the studies. This work will give an idea of the selection of nanoreinforcement of composite material in the perspective of elastic properties and interfacial stresses.

Waviness Effect of Fiber on Buckling Behavior of Sisal/Carbon Nanotube Reinforced Composites Using Experimental Finite Element Method

“…The volume fraction of fiber is changed from 10 to 50%. The Young's modulus of an epoxy matrix is 5.171 GPa, Poisson's ratio (ν) 0.35, sisal fiber modulus 190GPa, Poisson's ratio of sisal fiber 0.3 [20][21]27]. The carbon nanotube mixed sisal fiber reinforced epoxycomposite elastic properties are obtained from our previous research work [28].…”

“…The waviness effect of fiber on the fatigue response is also explored [22]. Random waviness of fiber is also identifed [23][24][25][26][27]. Carbon nanotube curviness and waviness effect on the longitudinal modulus is reported by Matveeva et al [26].…”

Mechanical properties of carbon fiber reinforced with carbon nanotubes and graphene filled epoxy composites: experimental and numerical investigations

“…Considering this, the maximum limit and minimum limit of the Young's modulus were predicted. In our previous work [14], we showed how to figure out the RVE for nano-CNTs and graphite. References [46][47][48][49] highlights some recent advancements in numerical methods regarding different mesh points.…”

“…Later, the properties of the carbon fibre reinforced with filler and epoxy composite were identified. The complete methodology used for these two homogenization procedures is taken from the previous research published by the first and second authors of the present work [14,45,50]. The finite element model at 0.5% of CNT and graphene in the epoxy matrix is presented in figures 9(a), (b).…”

“…On the other hand, micromechanics and the finite element method are used to figure out the elastic properties of the unidirectional carbon fibre reinforced composite with CNT, fullerene, and graphene-infused matrix composite [14]. Xuming Yao et al [15] conducted research studies on carbon fibres coated with CNTs and graphane oxide and discovered that both were significant when compared to one another, with CNT reinforcement exhibiting higher shear strength and graphane oxide reinforcement exhibiting superior humidity resistance.…”