A Shell Element for Buckling Analysis of Thin-Walled Composite-Laminated Members
- Publication Type:
- Journal Article
- Citation:
- International Journal of Structural Stability and Dynamics, 2018, 18 (2)
- Issue Date:
- 2018-02-01
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| A SHELL ELEMENT FOR BUCKLING ANALYSIS OF THIN-WALLED COMPOSITE-LAMINATED MEMBERS.pdf | Published Version | 3.03 MB |
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© 2018 World Scientific Publishing Company. This paper introduces a new shell element formulation and investigates the buckling behavior of thin-walled beams composed of fiber-reinforced polymer composite-laminates, which is a primary design concern for thin-walled beams composed of fiber-reinforced polymer composite-laminates due to their slenderness. Although global buckling behavior can be captured using beam-column type two-node simple finite element formulations, shell-type more sophisticated elements are needed in order to be able to capture the effects due to cross-sectional deformations. Pursuit of an efficient shell element formulation continues to date and in this study, a new flat rectangular shell element formulation is developed for the buckling analysis of thin-walled composite-laminated members. The plate component of the shell is locking-free and based on the twist-Kirchhoff theory. For the membrane component of the shell element, variational formulation employing drilling degrees of freedom is adopted. Convergence studies were presented to illustrate the numerical performances of the element. A broad class of problems including distortional as well as global buckling cases were solved and compared with solutions from the literature to validate the use of the developed shell element for the buckling analysis of thin-walled composite-laminated members.
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