The finite-width correction factors for anisotropic and orthotropic plates containing an elliptical opening are presented in a tractable and closed-form solution. Examining with experimental data and finite element solutions shows that the present theory is very ac curate for a broad range of opening-to-width ratio, 2a/W, and opening aspect ratio, a/b. The application of isotropic finite-width correction factors to estimate the anisotropic or orthotropic finite-width correction factors can cause significant error in many cases. The sensitivity of the finite-width correction factors as a function of the opening aspect ratio is also discussed.
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