Finance

Composite number

Statistics

Exfoliated graphite nano-platelets

Particle physics

Length scale

Parametric statistics

Optics

Physics

Finite element method

Resonance (particle physics)

Equations of motion

Composite material

Economics

Beam (structure)

Nanotechnology

Timoshenko beam theory

Materials science

Position (finance)

Vibration

Microbeam

Displacement field

Graphene

Mathematics

Mechanics

Quantum mechanics

Classical mechanics

Thermodynamics

Thin-Walled Structures

In this paper, the forced resonance vibration analysis of curved micro-size beams made of graphene nanoplatelets (GNPs) reinforced polymer composites is presented. The approximating of the effective material properties is on the basis of Halpin–Tsai model and a modified rule of mixture. The Timoshenko beam theory is applied to describe the displacement field for the microbeam. To incorporate small-size effects, the modified strain gradient theory, possessing three independent length scale coefficients, is employed. Hamilton principle is applied to formulate the size-dependent governing motion equations, which then is solved by Navier solution method. Ultimately, the influences of length scale coefficients, opening angle, weight fraction and the total number of layers in GNPs on composite curved microbeams corresponding to different GNPs distribution are discussed in detail through parametric studies. It is shown that, the resonance position is significantly affected by changing these parameters.

Resonance analysis of composite curved microbeams reinforced with graphene nanoplatelets