The Elastic Constants Measurement of Metal Alloy by Using Ultrasonic Nondestructive Method at Different Temperature

The ultrasonic nondestructive method is introduced into the elastic constants measurement of metal material. The extraction principle of Poisson’s ratio, elastic modulus, and shear modulus is deduced from the ultrasonic propagating equations with two kinds of vibration model of the elastic medium na...

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Bibliographic Details
Published in:Mathematical problems in engineering 2016-01, Vol.2016 (2016), p.1-7
Main Authors: Hu, Eryi, Wang, Wenjin
Format: Article
Language:English
Subjects:
Algorithms
Civil engineering
Constants
Correlation analysis
Deformation
Design engineering
Echo surveys
Elastic constants
Elastic media
Elastic properties
Fourier transforms
Longitudinal waves
Mathematical analysis
Mathematical models
Mathematical problems
Modulus of elasticity
Nondestructive testing
Personal computers
Poisson's ratio
Propagation
Propagation velocity
Shear modulus
Transverse waves
Ultrasonic methods
Ultrasonic testing
Ultrasonic transducers
Velocity
Vibration measurement
Wave propagation
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Summary:The ultrasonic nondestructive method is introduced into the elastic constants measurement of metal material. The extraction principle of Poisson’s ratio, elastic modulus, and shear modulus is deduced from the ultrasonic propagating equations with two kinds of vibration model of the elastic medium named ultrasonic longitudinal wave and transverse wave, respectively. The ultrasonic propagating velocity is measured by using the digital correlation technique between the ultrasonic original signal and the echo signal from the bottom surface, and then the elastic constants of the metal material are calculated. The feasibility of the correlation algorithm is verified by a simulation procedure. Finally, in order to obtain the stability of the elastic properties of different metal materials in a variable engineering application environment, the elastic constants of two kinds of metal materials in different temperature environment are measured by the proposed ultrasonic method.
ISSN:1024-123X
1563-5147
DOI:10.1155/2016/6762076