![]() |
Computational & Technology Resources
an online resource for computational,
engineering & technology publications |
||
Civil-Comp Proceedings
ISSN 1759-3433 CCP: 75
PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: B.H.V. Topping and Z. Bittnar
Paper 82
A C1 Triangular Finite Element for Analyzing Multilayered Shell Structures F. Dau+, O. Polit* and M. Touratier+
+LMSP, ENSAM, Paris, France
Full Bibliographic Reference for this paper
F. Dau, O. Polit, M. Touratier, "A C1 Triangular Finite Element for Analyzing Multilayered Shell Structures", in B.H.V. Topping, Z. Bittnar, (Editors), "Proceedings of the Sixth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 82, 2002. doi:10.4203/ccp.75.82
Keywords: finite element, refined shell model, multilayered structures,.
Summary
The aim of this work is to analyze the mechanical behaviour of multilayered
structures by shell finite element including transverse shear effects and
continuity requirements between layers in order to predict displacements
and stresses of such composite structures for design applications.
Based on a conform finite element method, a new C1 triangular six
node finite element is presented.
This element is based on a refined kinematic model [1],
using only five generalized displacements, to
assure :
The displacement field for each elastic layer
denoted
where
Several strain models, called Complete model, Love model and
Love-Donnell model are deduced from the displacement field
according to appropriate assumptions such as
Concerning the geometry of the shell, this one is described with an explicit map between curvilinear co-ordinates associated with the middle surface of the shell and cartesian co-ordinates. The main interest is to calculate analytically all the geometric characteristics of the shell : local covariant basis, metric and curvature tensors, Christoffel symbols, ...are needed.
The generalized displacements
This permits to ensure a conform finite element method and to avoid locking phenomenon. References
purchase the full-text of this paper (price £20)
go to the previous paper |
|||