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February 22, 2026Journal of Vibration and Control

Nonlinear forced vibrations of sandwich conical shells with metal foam cores and axially functionally graded faces under external excitation

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Authors

SASeyed Mohammad Mehdi Mizan AdlIslamic Azad University, TehranAAAli Alinia-ZiaziIslamic Azad University, TehranSHShahram Etemadi HaghighiIslamic Azad University, Tehran

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Implication

This analysis reveals the frequency response in sandwich conical shells, suggesting design improvements for stability under external forces.

Key Points

  • The aim is to analyze the nonlinear forced vibrations of sandwich conical shells with a metal foam core and functionally graded faces.
  • Derived structural relations using Hamilton’s principle.
  • Employed first-order shear deformation theory (FSDT) for displacement field.
  • Obtained mode shape functions via the generalized differential quadrature (GDQ) method.
  • Solved nonlinear transverse motion equation using Galerkin and harmonic balance methods.
  • Validated the effects of various physical and geometrical parameters on frequency.
  • Investigated porosity coefficient and distribution impacts on response curves.
  • Analyzed the influence of longitudinal FG power index on vibration dynamics.

Cite This Study

Adl et al. (2026) studied this question.

synapsesocial.com/papers/699a9e2d482488d673cd4c47https://doi.org/10.1177/10775463261422375
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