Techno Press
Techno Press

Structural Engineering and Mechanics
  Volume 9, Number 1, January 2000 , pages 99-110
DOI: https://doi.org/10.12989/sem.2000.9.1.099
 


Geometrically nonlinear analysis of laminated composites by an improved degenerated shell element
Yoo SW, Choi CK

 
Abstract
    The objective of this paper is to extend the use of the improved degenerated shell element to the linear and the large displacement analysis of plates and shells with laminated composites. In the formulation of the element stiffness, the combined use of three different techniques was made. This element is free of serious shear/membrane locking problems and undesirable compatible/commutable spurious kinematic deformation modes. The total Lagrangian approach has been utilized for the definition of the deformation and the solution to the nonlinear equilibrium equations is obtained by the Newton-Raphson method. The applicability and accuracy of this improved degenerated shell element in the analysis of laminated composite plates and shells are demonstrated by solving several numerical examples.
 
Key Words
    geometrically nonlinear, laminated composite, nonconforming mode, shell element
 
Address
Yoo SW, Kwandong Univ, Dept Civil Engn, Kangwon 215800, South Korea
Kwandong Univ, Dept Civil Engn, Kangwon 215800, South Korea
Korea Adv Inst Sci & Technol, Dept Civil Engn, Taejon 305701, South Korea
 

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