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<p>The literature extensively covers functionally graded (FG) composites with individual nanofillers like graphene nanoplatelets (GNP) or multi-walled carbon nanotubes (MWCNT). However, there is a gap in exploring their combined effect on the dynamic response of nanocomposites, which this study addresses. It investigates the impact of GNP flake size on dynamic properties using three commercially available types with flake sizes of 24, 5, and 1.5&#xa0;μm. The Biot constitutive law is used instead of Hooke’s law to model the polyurethane (PU) foam’s closed-cell structure. The modified Halpin–Tsai model assesses nanocomposite properties, accounting for nanofiller agglomeration. The equations of motion are derived using Hamilton’s principle and the first-order shear deformation theory (FSDT), then solved via the finite element method (FEM). Various parameters, including geometric and porosity parameters, weight fraction, reinforcement patterns, boundary conditions, and rotating velocity, are examined.</p>

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Dynamic response of rotating saturated porous hybrid cylindrical shell panel reinforced by MWCNTs and GNPs

  • 期刊论文

  • 发表日期：

    2025年7月8日

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  • Liang Yuan,
  • Yanjie Hu,
  • Cong Zhou

摘要

The literature extensively covers functionally graded (FG) composites with individual nanofillers like graphene nanoplatelets (GNP) or multi-walled carbon nanotubes (MWCNT). However, there is a gap in exploring their combined effect on the dynamic response of nanocomposites, which this study addresses. It investigates the impact of GNP flake size on dynamic properties using three commercially available types with flake sizes of 24, 5, and 1.5 μm. The Biot constitutive law is used instead of Hooke’s law to model the polyurethane (PU) foam’s closed-cell structure. The modified Halpin–Tsai model assesses nanocomposite properties, accounting for nanofiller agglomeration. The equations of motion are derived using Hamilton’s principle and the first-order shear deformation theory (FSDT), then solved via the finite element method (FEM). Various parameters, including geometric and porosity parameters, weight fraction, reinforcement patterns, boundary conditions, and rotating velocity, are examined.