Dynamic and buckling response modelling of functionally graded graphene oxide powder(GOP) reinforced cylindrical panels : Influence of GOP grading and non-uniformly, partially distributed edge loads.

Twinkle, C M; Pitchaimani, Jeyaraj

doi:10.1016/j.istruc.2022.04.031

Cited by 12 publications

(1 citation statement)

References 34 publications

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“…It was revealed from their research that by decreasing the modulus of angle, the fundamental natural frequency always increases. Twinkle and Pitchaimani [26] investigated the buckling and free vibration characteristics T A B L E 1 Matrix properties [32] T A B L E 2 Mechanical properties of unidirectional carbon fibers [33,34] Elongation (%) of sandwich cylindrical structure with porous functionally graded graphene platelets core based on the higher-order shear deformation theory and a semi-analytical approach. They considered the influence of nature of in-plane edge load, distribution of porosity and graphene platelets, porosity coefficient, graphene platelets loading, core-tothickness ratio on the buckling and vibration response of the composite structure.…”

Section: Introductionmentioning

confidence: 99%

Vibration behavior of a carbon fiber‐reinforced polymer composite sandwich panel: Rhombus core versus elliptical core

Eratbeni

Rostamiyan

2022

Polymer Composites

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Exploring lightweight sandwich structures with excellent load-bearing and vibration damping performances is one of the important topics in structural and functional applications. The aim of the present research is to design, fabricate carbon fiber-reinforced polymer (CFRP) sandwich panels with rhombus cores and investigate their modal characteristics by comparing with the traditional elliptical sandwich structure experimentally and numerically. In order to obtain modal properties including natural frequencies, damping ratio, mode shapes, and frequency responses of the fabricated structure, modal experiment is performed using a modal hammer with an acceleration sensor. Furthermore, a finite element method is developed to validate the precision of the experimental data. It is recognized that the finite element results are in remarkably great agreement with those obtained by modal experiment. The experimental results showed that the natural frequencies of the sandwich structures with rhombus are much higher than that of the elliptical sandwich structures under free-free boundary conditions and equal relative density of the truss cores.

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