Analytical Study of Free Vibration Characteristics For Sandwich Cylindrical Shell With Single Phase Metal Core

This paper presents an analytical investigation of the nonlinear vibration characteristics a single-phase functionally graded cylindrical shell panel with various porous metal cores. Porous constructions varying degrees porosity throughout their volume are known as materials (FGMs). These have wide range applications across several industries, including shipbuilding, automotive, biomedical, marine, and aerospace. The sandwich has core, while top bottom faces composed homogeneous materials. model is improved using power-law function. governing equations motion discretized according to classical thin theory von Karman strain-displacement relations by applying Galerkin's method collection ordinary equations. determined fourth-order Runge-Kutta method, which implemented in MATLAB software. influences core materials, distribution, FG thickness, face sheet layers, changing gradient index on natural frequency dynamic response discussed. existing literature used compare current findings, favorable level consistency observed. results obtained indicate that coefficients notable impact behavior overall reliability structures. demonstrate when parameter increased, frequencies also increase. Nevertheless, this new valuable may be great reference readers.