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Linear and Nonlinear Finite Element Analysis of Active Composite Laminates
Author(s) -
Marinković Dragan,
Köppe Heinz,
Gabbert Ulrich
Publication year - 2005
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200510036
Subject(s) - finite element method , nonlinear system , embedding , structural engineering , materials science , shell (structure) , piezoelectricity , composite number , element (criminal law) , shear (geology) , composite laminates , lagrangian , composite material , node (physics) , mathematical analysis , computer science , mathematics , engineering , physics , quantum mechanics , artificial intelligence , law , political science
The paper presents a finite element concept for analysis of thin‐walled active structures featuring fiber reinforced composite laminate as a passive structural material. The structure is rendered active by embedding piezoelectric material as a multifunctional material. A 9‐node degenerated shell element based on the first order shear deformation theory is developed as a modelling tool capable of predicting the general behavior of the structure for controlling purposes. The von‐Kármán type nonlinearities are considered. The solution strategy of the geometrical nonlinear analysis is based on the incremental approach using the updated Lagrangian formulation. Some numerical results are given to demonstrate the behavior of the element. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)