Elastic waves in a wedge of aluminum alloy with permanent residual deformations

Авторы: Korobov A., Izossimova M., Kokshaiskii A., Agafonov
Сборник: AIP Conference Proceedings
Серия: PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON NUMERICAL ANALYSIS AND APPLIED MATHEMATICS 2014 (ICNAAM-2014)
Том: 1685
Год издания: 2015
Место издания: AIP Publishing
DOI: 10.1063/1.4934458
Аннотация: The results of experimental studies of the propagation of elastic waves in a wedge of polycrystalline aluminum alloy with residual stresses are presented in the paper. Velocities of V-waves are measured in the range of (0.25-3) MHz. No velocity dispersion of the waves in this range has been found. The wedge with an angle of 60 degrees at a frequency of 250 kHz was investigated for localization of waves at the edge of the wedge. We investigated a number of nonlinear effects: dependence of the velocity and absorption of V-waves on their amplitudes, generation of a second harmonic of V-waves. The observed nonlinear phenomena are associated with the appearance of nonclassical elastic nonlinearity in the sample with the residual deformations
Добавил в систему: Кокшайский Алексей Иванович

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