A. Ballato, POISSONS RATIO FOR TETRAGONAL, HEXAGONAL, AND CUBIC-CRYSTALS, IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 43(1), 1996, pp. 56-62
General expressions for Poisson's ratio are derived for arbitrary orie
ntations of crystals in the tetragonal, hexagonal, and cubic systems;
simplified forms are given for cases involving symmetry directions.