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Submitted Papers : 80
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  Journal Paper


Paper Title :
Simulation of Vibrothermography in Ansys

Author :C.Ngaongam, Erik L.J. Bohez

Article Citation :C.Ngaongam ,Erik L.J. Bohez , (2017 ) " Simulation of Vibrothermography in Ansys " , International Journal of Mechanical and Production Engineering (IJMPE) , pp. 122-124, Volume-5,Issue-3

Abstract : This project aims to simulate temperature variation on defects structure due to ultrasonic excitation (Vibrothermography). The effects of excitation frequency and load amplitude to temperature variation are analyzed in Harmonic analysis and Transient analysis, respectively. The geometry of aluminum alloy (Al-5052) with crack is modeled and simulated in ANSYS Parametric Design Language (APDL). The excitation frequencies are between 20 kHz-30 kHz with 100 Hz increment, it is found that 21 kHz provides the highest temperature variation when the initial temperature of material is 27C ̊. Based on excitation frequency of 21 kHz, the temperature variation increases as increasing in load amplitude. In this research, the amplitude load are 5, 10, 30 and 50 μm. Moreover, temperature increases on compression area and decreases on tension area. Keywords- Vibrothermography, Nondestructive testing, thermal-stress, Ultrasonic excitation.

Type : Research paper


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