STUDY OF THE VARIATIONS OF LONGITUDINAL AND TRANSVERSE ULTRASONIC WAVE VELOCITIES WITH CHANGES IN TEMPERATURE

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AYANI MOHSEN; HONARVAR FARHANG; SHABANI RAMIN

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:2 Page(s): 199-205

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Information Journal Paper

Title

STUDY OF THE VARIATIONS OF LONGITUDINAL AND TRANSVERSE ULTRASONIC WAVE VELOCITIES WITH CHANGES IN TEMPERATURE

Author(s)

AYANI MOHSEN | HONARVAR FARHANG | SHABANI RAMIN | Issue Writer Certificate

Keywords

ULTRASONIC TESTINGQ2

LONGITUDINAL WAVEQ1

TRANSVERSEQ1

WAVE WAVEGUIDEQ2

HIGH TEMPERATUREQ1

Abstract

Ultrasonic nondestructive testing is a powerful tool for detection of defects as well as characterization of various properties of materials. In ULTRASONIC TESTING, it is very important to know the exact wave velocity in the material because most measurements somehow depend on wave velocity. Many other characteristics of materials such as elastic constants also depend on wave velocity. While variations of wave velocity in ambient temperatures are very small, these variations could be noticeable at HIGH TEMPERATUREs. In this paper, a simple and innovative experimental method is proposed for measurement of ultrasonic wave velocities at HIGH TEMPERATUREs. To keep the ultrasonic probe far from the hot sample, a special waveguide is designed. The wave velocity measurements are performed by pulse-echo ULTRASONIC TESTING technique and variations of ultrasonic wave velocities at temperatures ranging from 40oC to 160oC are investigated. It is observed that the velocity of ultrasonic waves decrease with increase in temperature. Experimental results are compared with theory and measurement uncertainties are calculated. These uncertainties are ±0.01 m/s and ±0.003 m/s for longitudinal and TRANSVERSE wave velocities, respectively. The theoretical and experimental results agree very well.

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APA: Copy

AYANI, MOHSEN, HONARVAR, FARHANG, & SHABANI, RAMIN. (2016). STUDY OF THE VARIATIONS OF LONGITUDINAL AND TRANSVERSE ULTRASONIC WAVE VELOCITIES WITH CHANGES IN TEMPERATURE. MODARES MECHANICAL ENGINEERING, 16(2), 199-205. SID. https://sid.ir/paper/178819/en

Vancouver: Copy

AYANI MOHSEN, HONARVAR FARHANG, SHABANI RAMIN. STUDY OF THE VARIATIONS OF LONGITUDINAL AND TRANSVERSE ULTRASONIC WAVE VELOCITIES WITH CHANGES IN TEMPERATURE. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(2):199-205. Available from: https://sid.ir/paper/178819/en

IEEE: Copy

MOHSEN AYANI, FARHANG HONARVAR, and RAMIN SHABANI, “STUDY OF THE VARIATIONS OF LONGITUDINAL AND TRANSVERSE ULTRASONIC WAVE VELOCITIES WITH CHANGES IN TEMPERATURE,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 2, pp. 199–205, 2016, [Online]. Available: https://sid.ir/paper/178819/en

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