Elastic properties of two-layered tubes from seven-constant tetragonal crystalsстатья
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Дата последнего поиска статьи во внешних источниках: 10 апреля 2024 г.
Аннотация:The present study analyzes effective elastic properties of two-layered composite tubes from seven-constant tetragonal crystals under tension. Analytical dependencies of Young’s modulus and Poisson’s ratios on elastic properties and geometric parameters of the tube are obtained. Values of these elastic characteristics compared to the values of Voigt’s averages for Young’s moduli of rectilinearly-anisotropic crystals and single-layered tubes of corresponding thickness. Auxetic two-layered tubes determined. It is shown that two-layered tubes of seven-constant tetragonal crystals are characterized by linear Poynting’s effect – the longitudinal strain is proportional to the torque angle.