An axiomatic/asymptotic evaluation of the best theories for free vibration of laminated and sandwich shells using non-polynomial functions (CROSBI ID 255425)
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Podaci o odgovornosti
Monge Soria, Joao Carlos ; Mantari Laureano, Jose Luis ; Charca Mamani, Samuel ; Vladimir, Nikola
engleski
An axiomatic/asymptotic evaluation of the best theories for free vibration of laminated and sandwich shells using non-polynomial functions
This paper presents Best Theory Diagrams (BTDs) constructed from non-polynomial terms to identify best shell theories for the free vibration analysis of laminated and sandwich shell. The shell theories have been constructed using Axiomatic/Asymptotic Method (AAM). The refined models are implemented following the compactness of a unified formulation developed. The governing equations are derived from the Hamilton’s Principle. Navier-Type solution technique is used for solving the eigenvalue problem of simply supported shell. The BTDs use 3D equilibrium solutions as a reference. The BTDs built from non-polynomial functions are compared with Maclaurin expansions. The results are compared with Layerwise solutions. Cylindrical and spherical shells with different layer- configurations are investigated. The results demonstrate that the shell models obtained from the BTD using non-polynomial terms can improve the accuracy obtained from Maclaurin expansion for a given order of expansion of a displacement field.
Laminated composite, Carrera Unified Formulation (CUF), Best Theory Diagram, Axiomatic/asymptotic
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Podaci o izdanju
172
2018.
1011-1024
objavljeno
0141-0296
1873-7323
10.1016/j.engstruct.2018.06.020
Povezanost rada
Brodogradnja, Strojarstvo, Temeljne tehničke znanosti