Publicación:
Best non-polynomial shear deformation theories for cross-ply single skin and sandwich shells
Best non-polynomial shear deformation theories for cross-ply single skin and sandwich shells
No hay miniatura disponible
Fecha
2020
Autores
Monge J.C.
Mantari J.L.
Título de la revista
Revista ISSN
Título del volumen
Editor
Elsevier Ltd
Proyectos de investigación
Unidades organizativas
Número de la revista
Abstracto
This paper presents Best Theory Diagrams (BTDs) constructed from non-polynomial terms to identify best shell theories for bending analysis of cross-ply single skin and sandwich shell panels. This structure presents a constant radii of curvature. The shell theories are constructed using Axiomatic/Asymptotic Method (AAM). The different shell theories are described using the Carrera's Unified Formulation. The governing equations are derived from the Principle of Virtual Displacement (PVD). Navier-Type closed form solution is used for solving the bending problem of simply supported doubly curved shell panels subjected to bi-sinusoidal transverse pressure. The BTDs built from non-polynomial functions are compared with Maclaurin expansions. Spherical shell panels with different layer-configurations are investigated. The results demonstrated that the shell models obtained from the BTD using non-polynomial terms can improve the accuracy obtained from Maclaurin expansion for a given number of unknown variables of a displacement field. © 2019
Descripción
Palabras clave
Shell,
Axiomatic/Asymptotic,
Best Theory Diagram,
Carrera Unified Formulation (CUF),
Laminated composite