Hybrid-Mixed Low-Order Finite Elements for Geometrically Exact Shell Models: Overview and Comparison

2021 ◽  
Author(s):  
Marko Lavrenčič ◽  
Boštjan Brank
Keyword(s):  
Finite Elements ◽  
Shell Models ◽  
Geometrically Exact Shell ◽  
Low Order

Influence of fasteners and connections flexibility on deflections of steel building including the stressed skin effect

2018 ◽  
Vol 2 (21) ◽  
pp. 131-148 ◽  
Author(s):  
Natalia Korcz ◽  
Elżbieta Urbańska-Galewska
Keyword(s):  
Finite Elements ◽  
Skin Effect ◽  
Numerical Models ◽  
Orthotropic Shell ◽  
3D Structure ◽  
Negligible Effect ◽  
Transverse Stiffness ◽  
Shell Models ◽  
Steel Building ◽  
Two Sides

The paper presents the analysis of the influence of fasteners and connections flexibility on displacements of symmetrical single-bay pitched-roof steel building, including trapezoidal cladding acting as a diaphragm. The purpose of the article was to compare numerical models with and without taking into consideration fasteners and connections flexibility in order to observe the differences in transverse stiffness of the building during modifying model from the simple one to more complex and precise. The analyses were carried out for the 3D structure. Fasteners and connections were substituted by equivalent beam finite elements. Corrugated sheets were replaced by three types of equivalent orthotropic shell models and the influence of the choice of the model on the stiffness of the building was observed. The results showed that in the analysed structure the flexibility of fasteners and connections has negligible effect on transverse displacements of the building in the case of four sides fastening of the sheeting, however in the case of two sides fastening the influence significantly increases.

Stable and Semistable Low Order Finite Elements for Viscous Flows

1985 ◽  
Vol 22 (3) ◽  
pp. 474-492 ◽  
Author(s):  
J. M. Boland ◽  
R. A. Nicolaides
Keyword(s):  
Finite Elements ◽  
Viscous Flows ◽  
Low Order

Computation of the vibration modes of plates and shells by low-order MITC quadrilateral finite elements

2003 ◽  
Vol 81 (8-11) ◽  
pp. 615-628 ◽  
Author(s):  
E Hernández ◽  
L Hervella-Nieto ◽  
R Rodrı́guez
Keyword(s):  
Finite Elements ◽  
Vibration Modes ◽  
Plates And Shells ◽  
Low Order
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