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Structural Engineering and Mechanics Volume 8, Number 6, December 1999 , pages 623-637 DOI: https://doi.org/10.12989/sem.1999.8.6.623 |
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Assumed strain quadrilateral C-0 laminated plate element based on third-order shear deformation theory |
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Shi G, Lam KY, Tay TE, Reddy JN
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| Abstract | ||
| This paper presents a four-noded quadrilateral CO strain plate element for the analysis of thick laminated composite plates. The element formulation is based on: 1) the third-order shear deformation theory; 2) assumed strain element formulation; and 3) interrelated edge displacements and rotations along element boundaries. Unlike the existing displacement-type composite plate elements based on the third-order theory, which rely on the C-1-continuity formulation, the present plate element is of C-0-continuity, and its element stiffness matrix is evaluated explicitly. Because of the third-order expansion of the in-plane displacements through the thickness, the resulting theory and hence elements do not need shear correction factors. The explicit element stiffness matrix makes the present element more computationally efficient than the composite plate elements using numerical integration for the analysis of thick layered composite plates. | ||
| Key Words | ||
| laminated composite plates, Reddy-Levinson third-order plate theory, plate element, assumed strain FE formulation | ||
| Address | ||
| Shi G, Natl Univ Singapore, Inst High Performance Comp, Singapore 119260, Singapore Natl Univ Singapore, Inst High Performance Comp, Singapore 119260, Singapore Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA | ||