Vibration Analysis of Composite Laminated and Sandwich Conical Shell Structures: Numerical and Experimental Investigation

Abstract

The use of composite conical shell structures across the globe in various applications concentrates on nose cones and incredibly complex vehicle components in the aerospace and automotive industries. This work investigates the free vibration analysis of laminated conical shell (LCS) and sandwich conical shell (SCS) structures with various foam cores. The sandwich construction is fabricated using the hand layup technique. The vibration characteristics of the fabricated LCS and SCS specimens are validated with the Finite element software (ANSYS). Very minimal variation was observed between the experimental and numerical simulations. The various parametric analyses were also studied for the LCS and SCS with length, ply orientation, and boundary conditions. Further, for SCS, vibration behaviors across multiple core materials and core thickness were also investigated.

Vibrational behavior of a 3D printed biomimetic dual‐core composite sandwich beam: An experimental and numerical study

“…[6][7][8] A range of stiffness and strength of honeycomb sandwich structures at low weight will be accomplished by choosing the proper shape, size, and materials for the core. [9][10][11][12][13] Many studies have been performed on vibration analysis to evaluate the dynamic properties of smart sandwich beams, [14][15][16] sandwich panels, [17][18][19][20] and hybrid composite laminates. [21][22][23] Boudjemai et al 24 worked on an equivalent model of a composite honeycomb sandwich plate and compared it with experiments by investigating their modal behaviors.…”