Study on theoretical modeling and mechanical performance of a spinning porous graphene nanoplatelet reinforced beam attached with double blades

In this article, theoretical modeling and vibration characteristics of a spinning double-blade beam assembly restricted by elastic supports are studied. Graphene nanoplatelet (GPL) reinforcement and porous foamed metal matrix are adopted to make up the assembly structure. Due to the nonuniformity of...

Full description

Saved in:
Bibliographic Details
Published in:Mechanics of advanced materials and structures 2023-03, Vol.30 (8), p.1530-1541
Main Authors: Zhao, Tian Yu, Jiang, Lu Ping, Yu, Yin Xin, Wang, Yan Qing
Format: Article
Language:English
Subjects:
Assembly
Beam theory (structures)
Beams (structural)
Blades
Double-blade beam
Elastic supports
Equations of motion
Euler-Bernoulli beams
Foamed metals
free vibration
Graphene
graphene nanoplatelets
Material properties
Mechanical properties
Micromechanics
Modelling
Nanocomposites
Nonuniformity
Platelets (materials)
Porosity
Porous media
Resonant frequencies
spinning
Stiffness
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this article, theoretical modeling and vibration characteristics of a spinning double-blade beam assembly restricted by elastic supports are studied. Graphene nanoplatelet (GPL) reinforcement and porous foamed metal matrix are adopted to make up the assembly structure. Due to the nonuniformity of the porosity and graphene nanofillers, the material properties of the attached blades and beam are considered to change along the blade thickness and beam radius, respectively. They are obtained via the rule of mixture, the open-cell scheme and the Halpin-Tsai micromechanics model. These attached blades and beam are modeled in accordance with the Euler-Bernoulli beam theory and the Rayleigh beam theory, respectively. Via employing the Lagrange's equation, the equations of motion of the double-blade beam are derived. Then, the natural frequencies of the spinning nanocomposite double-blade beam are calculated by the substructure modal synthesis method and the assumed modes method. A detailed parameter analysis is performed to study the influences of dimension, distribution pattern and weight fraction of GPLs, distribution and coefficient of porosity, length and location of the blades, stiffness and location of supports, and spinning speed on the mechanical behaviors of the double-blade beam assembly.
ISSN:1537-6494
1537-6532
DOI:10.1080/15376494.2022.2035862