Calculate the effective homogeneous orthotropic elastic lamina properties from orthotropic fiber and isotropic matrix elastic properties and fiber volume fraction.  The Voigt and Reuss models provide upper and lower property predictions.  The Halpin-Tsai semi-empirical model is also provided with suggestions for the dimensionless property, xi. 

For reference, see: Whitney, J. M. and McCullough, R. L.  Delaware Composites Design Encyclopedia, Vol. 2, "Micromechanical Materials Modeling," Technomic Publishing Company, 1990, pp. 50-56, 82-89. Halpin, J.C., and Kardos, J.L. "Halpin-tsai equations – review," Polymer Engineering and Science, Vol. 16, Issue 5, pp. 344-352.

Researchers should cite this work as follows:

• Johnathan Goodsell; Andrew J Ritchey (2014), "Halpin-Tsai Micromechanics Model," https://cdmhub.org/resources/mmtool.

  BibTex | EndNote

1. Composite Analysis
2. Composites
3. Homogenization
4. Lamina Properties
5. Micromechanics
6. Phase Properties