Improved transverse shear stresses in composite finite elements based on first order shear deformation theory
Rolfes, R. and Rohwer. K., (1997) Improved transverse shear stresses in composite finite elements based on first order shear deformation theory. International Journal for Numerical Methods in Engineering, 40 (1), pp. 51-60.
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A method for calculating improved transverse shear stresses in laminated composite plates, which bases on the first-order shear deformation theory is developed. In contrast to many recently established methods, either higher-order lamination theories or layerwise theories, it is easily applicable to finite elements, since only C0-continuity is necessary and the numerical effort is low. The basic idea is to calculate the transverse shear stresses directly from the transverse shear forces by neglecting the influence of the membrane forces and assuming two cylindrical bending modes. Shear correction factors are no longer required, since the transverse shear stiffnesses are also provided. Numerical examples for symmetric cross-ply and antisymmetric angle-ply laminates show the superiority of the method against using shear correction factors. Furthermore, results obtained with MSC/NASTRAN, which uses a similar but simplified approach, are surpassed.
|Title:||Improved transverse shear stresses in composite finite elements based on first order shear deformation theory|
|Journal or Publication Title:||International Journal for Numerical Methods in Engineering|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 51-60|
|Keywords:||fiber composite; laminate; shear deformation theory; transverse shear stiffness; interlaminar shear; finite shell elements|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L - no assignement|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L ST - Starrflüglertechnologien|
|DLR - Research theme (Project):||UNSPECIFIED|
|Institutes and Institutions:||Institute of Composite Structures and Adaptive Systems > Institut für Strukturmechanik|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||02 Apr 2006|
|Last Modified:||27 Apr 2009 12:09|
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