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- W744271891 abstract "In this paper, a four-node Mindlin flat shell element with substitute shear strain and nonconforming displacement modes is used for analyzing laminated composite shells. The transverse shear deformation is included by using the first-order shear deformation theory. Commonly, transverse shear locking phenomenon is possible for the application of the four-node Mindlin flat shell element especially for thin shell. The reduced integration strategy adopted for solving the transverse shear locking problem results spurious zero energy modes. The substitute shear strain field can be used to avoid the locking and spurious zero energy modes. Nonconforming displacement modes are considered to improve in-plane and out-of-plane behaviors of the shell element. In the process of transforming local stiffness into global stiffness, the drilling rotational stiffness can occur. To avoid numerical difficulties associated with the drilling rotational stiffness, the artificial drilling rotational stiffness proposed by Zienkiewicz and Taylor (1989) is used. Various examples are considered by using the flat shell element proposed in the present study. It is shown that the results obtained by the substitute shear strain and nonconforming displacement modes provide more reliable and accurate solutions comparing with other research results." @default.
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- W744271891 date "2003-01-01" @default.
- W744271891 modified "2023-09-23" @default.
- W744271891 title "Substitute Shear Strain and Nonconforming Four-Node Mindlin Flat Shell Element for Laminated Composite Shells" @default.
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