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- W1977268857 abstract "A mixed finite element method (MFEM) aiming at solving the problem of three-dimensional stress analysis of multi-layer composite laminates with a high accuracy is presented. The approach, which is based on the global-local laminate variational model, proposes a mixed use of a hibrid stress element within a high precision stress solution region in the thickness direction of the laminate and a conventional displacement finite element in the remaining. This results in a reduction of the overall computation time while maintaining the solution precision in the area(s) of interest, normally being certain interface(s) within a laminate. A formulation of a 49 stress parameter hybrid stress element in conjunction with a 42 degree of freedom iso-parametric displacement element is given. The quality of the hybrid stress element is assured by a stiffness matrix eigenvalue analysis. Example computations of laminate cylindrical bending and the classical free-edge problem have shown the feasibility of the MFEM approach and the convergence of the specific 49β-42 q formulation." @default.
- W1977268857 created "2016-06-24" @default.
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- W1977268857 date "1992-01-01" @default.
- W1977268857 modified "2023-09-28" @default.
- W1977268857 title "A mixed finite element for interlaminar stress computation" @default.
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- W1977268857 doi "https://doi.org/10.1016/0263-8223(92)90019-9" @default.
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