An Efficient Stress Function Approximation for the Free-Edge Stresses in Laminates -- from Wolfram Library Archive

Title

An Efficient Stress Function Approximation for the Free-Edge Stresses in Laminates

Author

Gerry Flanagan

Journal / Anthology

International Journal of Solids and Structures

Year:

1994

Volume:

Issue:

Page range:

941-952

Description

A solution method is derived for determining the free-edge stresses in composite laminates. The method is based on expanding stress functions in terms of a harmonic series in the thickness direction. Using the principle of minimum complementary energy, a system of ordinary differential equations is derived for the distribution in the width direction. Cross-ply and angle-ply laminates are examined to establish the validity of the solution. Eight- and 16-ply quasi-isotropic laminates are also examined to demonstrate a convergence criterion based on average stress. The method proves to be a relatively simple and efficient approach for this problem.

Subject

Engineering > Mechanical and Structural Engineering

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