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Structural Engineering and Mechanics Volume 9, Number 1, January 2000 , pages 99-110 DOI: https://doi.org/10.12989/sem.2000.9.1.099 |
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Geometrically nonlinear analysis of laminated composites by an improved degenerated shell element |
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Yoo SW, Choi CK
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| 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 | ||