Для верификации математической модели теории процессов проведены численные расчёты сложного упругопластического деформирования стали 45 по пятизвенной кусочно-ломаной траектории. Выполнено сравнение полученных результатов расчета с данными физического эксперимента, проведенного на автоматизированном испытательном комплексе СН-ЭВМ на тонкостенных трубчатых образцах из стали 45. Программа эксперимента реализована в девиаторном пространстве деформаций (жесткое нагружение) при совместном действии на образец осевой силы и крутящего момента. Показано, что используемая математическая модель качественно и количественно удовлетворительно описывает основные эффекты сложного пластического деформирования для рассматриваемого класса траекторий.
Reviewing the numerical simulation of the process of non-proportional elastic-plastic deformation of steel 45 by a knot of constant curvature, taking into account the complex nature of deformation under complex subcritical loading by axial compressive force and torque for a thin-walled circular cylindrical shell. The theory of Quas and simple processes of A. A. Ilyushin and the mathematical model of V. Zubchaninov were applied taking into consider the parameters of the complex loading for plane trajectories To assess the accuracy of accepted theories, the simulation results are compared with experimental results, received on the automated complex СNcomputer in the laboratory of the faculty of «Strength of materials and theory of elasticity and plasticity» of the Tver state technical University. Was introduced the scheme of calculations disproportionate plastic deformation of steel 45 using the proposed mathematical model showed a satisfactory result and recommended for further use. Remarks, that in the described processes the lack of some parameters complex loading in approximations reduces the accuracy of the final calculated values, differences significantly compared to the experimental data.
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