It was shown for the first time that when modelling the deformation of materials with cubic symmetry (at full stress), the rotation of the computational axes leads to the identification of anisotropic volumetric compressibility. Loading of the materials with cubic symmetry of properties in the directions not coincided with the main directions (for example, 011) allows one to detect 75% cases of the auxetic single crystals (i.e. with negative Poisson’s ratio). In these cases, the negative volumetric compressibility has anisotropy, in contrast to the volumetric compressibility calculated along the crystallographic axes for cubic materials
Mathematics and mechanics of solids. 2022. Vol. 27, № 2. P. 210-221
Language
eng
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Механико-математический факультет
Mathematical simulation of elastoplastic deformation in cubic materials with an account of anisotropic bulk compressibility