Abstract
In this paper the influence of aspect ratio, height ratio and material angle on static and free vibration behaviour of orthotropic elliptic paraboloid shells is studied by using a four-node hybrid stress finite element. The formulation of the element is based on Hellinger-Reissner variational principle. The element is developed by combining a hybrid plane stress element and a hybrid plate element. A parametric study is carried out for static and free vibration response of orthotropic elliptic paraboloid shells with respect to displacements, internal forces, fundamental frequencies and mode shapes by varying the aspect and height ratios, and material angle.
Original language | English |
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Pages (from-to) | 737-746 |
Number of pages | 10 |
Journal | Steel and Composite Structures |
Volume | 23 |
Issue number | 6 |
DOIs | |
Publication status | Published - 30 Apr 2017 |
Bibliographical note
Publisher Copyright:© 2017 Techno-Press, Ltd.
Keywords
- Assumed stress hybrid element
- Elliptic paraboloid shell
- Finite element
- Free vibration
- Static analysis