• 文献标题:   Effect of laminate configuration on the free vibration/buckling of FG Graphene/PMMA composites
  • 文献类型:   Article
  • 作  者:   ZEVERDEJANI MK, BENI YT
  • 作者关键词:   buckling, free vibration, fglaminate, molecular dynamic, boundary condition, ritz method
  • 出版物名称:   ADVANCES IN NANO RESEARCH
  • ISSN:   2287-237X EI 2287-2388
  • 通讯作者地址:   Shahrekord Univ
  • 被引频次:   0
  • DOI:   10.12989/anr.2020.8.2.103
  • 出版年:   2020

▎ 摘  要

In this research, buckling and free vibration of rectangular polymeric laminate reinforced by graphene sheets are investigated. Various patterns are considered for augmentation of each laminate. Critical buckling load is evaluated for different parameters, including boundary conditions, reinforcement pattern, loading regime, and laminate geometric states. Furthermore, vibration analysis is investigated for square laminate. Elastic properties of the composite are calculated using a combination of both molecular dynamics (MD) and the rule of mixture (MR). Kinematics of the plate is approximated based on the first shear deformation theory (FSDT). The current analysis is performed based on the energy method. For the numerical investigation, Ritz method is applied, and for shape functions, Chebyshev polynomials are utilized. It is found that the number of layers is effective on the buckling load and natural frequency of laminates which made from non-uniform layers.