Measurement of the Elastic Constants of Polycrystals in a Cylindrical Specimen by the Resonance Method : Elastic Anisotropy of an Axisymmetrical Specimen and Measurements at Low and High Temperatures : Solid-Mechanics, Strength of Materials

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By using the resonance method with a cylindrical specimen, the anisotropic elastic constants of an axisymmetrical specimen at room temperature and the elastic constants of isotropic polycrystalline materials in a temperature range from about -190℃ to about 300℃ have been measured. In the former case, anisotropic elastic constants are determined in a JIS-C3604 brass (60/40) specimen which is mono-axially deformed by a compression equal to 49% of nominal strain. In the latter, the temperature dependence of isotropic elastic constants of pure aluminum is obtained and it agrees well with the converted values from existing elastic constants on a single crystal measured by the ultrasonic method over all temperature ranges.