Can we apply the relations, beta=2alpha and gamma=3alpha for anisotrop

1.	Can we apply the relations, beta=2alpha and gamma=3alpha for anisotropic solids?
Answer» Solution :No, these relations are applicable for isotropic solids. For anisotropic solids. For anisotropic solids, `beta=alpha_(1)+alpha_(2) and gamma=alpha_(1)+alpha_(2)+alpha_(3)` where `alpha_(1), alpha_(2), alpha_(3)` are the COEFFICIENTS of linear expansion along THREE mutually perpendicular AXES.

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