Apparatus for quick control of materials by the damping capacity level
Tóm tắt
The article describes the working principle and design of an apparatus for quick control of damping capacity of materials in the amplitude-dependent region of internal friction with tension-compression loading of specimens in the ultrasonic range of frequencies (16–23 kHz). Amplitude dependences of energy dissipation parameters and modulus of elasticity defects of a series of metallic materials are presented as illustration.