Nonlinear flexural analysis of sandwich beam with multi walled carbon nanotube reinforced composite sheet under thermo-mechanical loading

Abstract

Nonlinear flexural analysis of sandwich composite beam with multiwall carbon nanotube (MWCNT) reinforced composite face sheet and bottom sheet under the thermo-mechanically induced loading using finite element method is carried out. Solution of current bending analysis is performed using Newton’s Raphson approach by using higher order shear deformation theory (HSDT) and non-linearity with Von Kármán kinematics. The sandwich laminated composite beam is subjected to uniform, linear and nonlinear varying temperature distribution through thickness of the beam. The sandwich beam with MWCNT reinforced composite facesheet and bottom sheet is subjected to point, uniformly distributed (UDL), hydrostatic and sinusoidal loading. The two phase matrix is utilized with E-Glass fiber to form three phase composite face sheet and bottom sheet by Halpin-Tsai model. The static bending analysis is performed for evaluating the transverse central deflection of three and five layered sandwich composite beam. Transverse central deflection is measured by varying CNT volume fraction, uniformly distributed, linearly and nonlinear varying temperature distribution, thickness ratio, boundary condition, number of walls of carbon nanotube by using interactive MATLAB code.

Multi-objective optimization of a sandwich structure with a hybrid composite grid core

“…(Lal and Markad, 2020a, 2021b) Examined thermal analysis and nonlinear post-buckling and free vibration analysis of smart and polymer sandwich plates shape memory alloy under uniform temperature and dynamic temperature changes. (Lal and Markad, 2020b, 2021a) Examined Nonlinear post-buckling analysis sandwich composite beams subjected to static load and they also examined nonlinear flexural analysis of carbon nanotube-reinforced sandwich beams under dynamic loading.…”

Experimental and theoretical study of sandwich composites with Z-pins under quasi-static compression loading

“…Sandwich composites made from high performance fibre laminate faces over foam cores are highly used in aerospace, naval applications and wind turbines where the weight is critical (Carlsson and Kardomateas, 2011; Lal and Markad, 2020a, 2020b; Selver and Kaya, 2019b). The core part plays critical role to provide compressive strength to sandwich composites whilst it is weaker than face or skin materials (Thomsen et al, 2005).…”