A Comparative Study between Numerical and Analytical Approaches to Load Carrying Capacity of Conical Shells under Axial Loading
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2017 by IJETT Journal|
|Year of Publication : 2017|
|Authors : Haluk Y?lmaz, Erdem Özyurt, Petr Tomek
|DOI : 10.14445/22315381/IJETT-V52P201|
Haluk Y?lmaz, Erdem Özyurt, Petr Tomek "A Comparative Study between Numerical and Analytical Approaches to Load Carrying Capacity of Conical Shells under Axial Loading", International Journal of Engineering Trends and Technology (IJETT), V52(1),1-6 October 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
In this study, loss of stability of the truncated conical shell structures under axial loading was investigated. Analytical calculations were made by means of analytical expressions derived from the linear theory. These expressions are presented in previous studies in the literature and so in ECCS regulations. A numerical study was performed with two finite element package programs; Cosmos/M and Abaqus. In all numerical simulations, nonlinear geometry effect was considered (GNA – Geometrically nonlinear analysis). Conical shells with a semi-vertex angle in the range of 10-80° and shell thickness in the range of 0.6-1mm were modeled. All results from both analytical and numerical studies were compared. Furthermore, an empirical expression which evaluates the load carrying capacity of the presented conical shells was exhibited in terms of the dimensionless parameter.
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Conical shell, Elastic buckling, Axial compression, Finite element method.