• 文献标题:   Transient Thermal Stresses in FG Porous Rotating Truncated Cones Reinforced by Graphene Platelets
  • 文献类型:   Article
  • 作  者:   BABAEI M, KIARASI F, ASEMI K, DIMITRI R, TORNABENE F
  • 作者关键词:   fem, functionally graded material, porous structure, graphene platelet, rotating truncated cone, transient thermal stres
  • 出版物名称:   APPLIED SCIENCESBASEL
  • ISSN:  
  • 通讯作者地址:  
  • 被引频次:   13
  • DOI:   10.3390/app12083932
  • 出版年:   2022

▎ 摘  要

The present work studies an axisymmetric rotating truncated cone made of functionally graded (FG) porous materials reinforced by graphene platelets (GPLs) under a thermal loading. The problem is tackled theoretically based on a classical linear thermoelasticity approach. The truncated cone consists of a layered material with a uniform or non-uniform dispersion of GPLs in a metal matrix with open-cell internal pores, whose effective properties are determined according to the extended rule of mixture and modified Halpin-Tsai model. A graded finite element method (FEM) based on Rayleigh-Ritz energy formulation and Crank-Nicolson algorithm is here applied to solve the problem both in time and space domain. The thermo-mechanical response is checked for different porosity distributions (uniform and functionally graded), together with different types of GPL patterns across the cone thickness. A parametric study is performed to analyze the effect of porosity coefficients, weight fractions of GPL, semi-vertex angles of cone, and circular velocity, on the thermal, kinematic, and stress response of the structural member.