HyperSizer Published Paper

"Simplified Shear Solution for Determination of the Shear Stress Distribution in a Composite Panel from the Applied Shear Resultant"

Authors: Brett Bednarcyk, Jacob Aboudi, Phillip Yarrington and Craig Collier

Abstract: The “simplified shear solution” method is presented for approximating the throughthickness
shear stress distribution within a composite laminate or panel based on laminated
beam theory. The method does not consider the solution of a particular boundary value
problem; rather it requires only knowledge of the global shear loading, geometry, and
material properties of the laminate or panel. It is thus analogous to lamination theory in
that ply level stresses can be efficiently determined from global load resultants (as
determined, for instance, by finite element analysis) at a given location in a structure and
used to evaluate the margin of safety on a ply by ply basis. The simplified shear solution
stress distribution is zero at free surfaces, continuous at ply boundaries, and integrates to the
applied shear load. Comparisons to existing theories are made for a variety of laminates,
and design examples are provided illustrating the use of the method for determining
through-thickness shear stress margins in several types of composite panels and in the
context of a finite element structural analysis.

- To view file:   Click on the link below
- To download: Right-click, then "Save Target As"

AIAA-2008-2168-893-SSS.pdf (650k)