Abstract
The method of homogeneous deformation has been modified and applied to the calculation of second-order elastic constants for a class of noncentral interatomic potentials with the symmetry of Bravais lattices. The conditions of rotational invariance of the potential energy and the zero initial stress conditions were found and their validity was verified. For cubic symmetry a method was elaborated which applies to the noncentral interatomic potentials proposed byJohnson andWilson. The presented method of homogeneous deformation is compared with the original method ofFuchs and with the method of long waves in calculations of elastic constants.
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