MIXED FINITE-ELEMENT FORMULATION AND OPTIMAL-DESIGN OF THIN COMPOSITELAMINATES

Authors
CINQUINI C MARIANI C VENINI P
Citation
C. Cinquini et al., MIXED FINITE-ELEMENT FORMULATION AND OPTIMAL-DESIGN OF THIN COMPOSITELAMINATES, Control and Cybernetics, 27(2), 1998, pp. 165-176
Citations number
5
Categorie Soggetti
Computer Science Cybernetics","Robotics & Automatic Control","Computer Science Cybernetics","Robotics & Automatic Control
Journal title
Control and Cybernetics → ACNP
ISSN journal
03248569
Volume
27
Issue
2
Year of publication
1998
Pages
165 - 176
Database
ISI
SICI code
0324-8569(1998)27:2<165:MFFAOO>2.0.ZU;2-B
Abstract
A Hellinger-Reissner variational principle is introduced to derive the weak form equation of thin generally orthotropic laminates. It leads naturally to a mixed finite-element approximation that has the out-of- plane deflection and the bending and twisting moments as independent u nknowns. A triangular element is derived that is used for both analysi s and optimization purposes. Numerical simulations on example laminate s of irregular geometry are presented to validate the theoretical fram ework.