JOURNAL BROWSE
Search
Advanced SearchSearch Tips
A Method to Simulate Frictional Heating at Defects in Ultrasonic Infrared Thermography
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
A Method to Simulate Frictional Heating at Defects in Ultrasonic Infrared Thermography
Choi, Wonjae; Choi, Manyong; Park, Jeonghak;
  PDF(new window)
 Abstract
Ultrasonic infrared thermography is an active thermography methods. In this method, mechanical energy is introduced to a structure, it is converted into heat energy at the defects, and an infrared camera detects the heat for inspection. The heat generation mechanisms are dependent on many factors such as structure characteristics, defect type, excitation method and contact condition, which make it difficult to predict heat distribution in ultrasonic infrared thermography. In this paper, a method to simulate frictional heating, known to be one of the main heat generation mechanisms at the closed defects in metal structures, is proposed for ultrasonic infrared thermography. This method uses linear vibration analysis results without considering the contact boundary condition at the defect so that it is intuitive and simple to implement. Its advantages and disadvantages are also discussed. The simulation results show good agreement with the modal analysis and experiment result.
 Keywords
Ultrasonic Infrared Thermography(UIRT);Frictional Heating;Defect;Simulation;Modelling;
 Language
English
 Cited by
 References
1.
X. P. V. Maldague, "Theory and Practice of Infrared Technology for Nondestructive Testing," John Wiley & Sons, Inc. (2001)

2.
Y. Chung, S. Ranjit and W. Kim, "Thermal imaging for detection of SM45C subsurface defects using active infrared thermography techniques" Journal of the Korean Society for Nondestructive Testing, Vol. 35, No. 3, pp. 193-199 (2015) crossref(new window)

3.
G. Kim, K. Lee, G. Kim, H. Hur, D. Kim and K. Chang, "Thermal resolution analysis of lock-in infrared microscope," Journal of the Korean Society for Nondestructive Testing, Vol. 35, No. 1, pp. 12-17 (2015). crossref(new window)

4.
K. Kwon, M. Choi, H. Park, J. Park, Y. Huh and W. Choi, "Quantitative defects detection in wind turbine blade using optical infrared thermography," Journal of the Korean Society for Nondestructive Testing, No. 35, No. 1, pp. 25-30 (2015) crossref(new window)

5.
H. Park, M. Choi, J. Park and W. Kim, "A study on detection of micro-cracks in the dissimilar metal weld through ultrasound infrared thermography," Infrared Physics & Technology, Vol. 62, pp. 124-131 (2014) crossref(new window)

6.
J. Renshaw, J. C. Chen, S. D. Holland and R. B. Thompson, "The sources of heat generation in vibrothermography," NDT & E International, Vol. 44, pp. 736-739 (2011) crossref(new window)

7.
Z. Ouyang, L. D. Favro, R. L. Thomas and X. Han, "Theoretical modeling of thermosonic imaging of cracks," Review of QNDE, Vol. 21, AIP, 615, pp. 577-581 (2002)

8.
F. Mabrouki, M. Thomas, M. Genest and A. Fahr, "Frictional heating model for efficient use of vibrothermography," NDT & E International, Vol. 42, pp. 435-352 (2009) crossref(new window)

9.
S. D. Holland, C. Uhl and J. Renshaw, "Vibrothermographic crack heating: a function of vibration and crack size," Review of QNDE, Vol. 28, AIP, 1096, pp. 489-494 (2009)

10.
M. Choi, S. Lee, J. Park, W. Kim and K. Kang, "Analysis of heat generation mechanism in ultrasound infrared thermography," Journal of the Korean Society for Nondestructive Testing, Vol. 29, No. 1, pp. 10-14 (2009)

11.
M. Rothenfusser and C. Homma, "Acoustic thermography: vibrational modes of cracks and the mechanism of heat generation," Review of QNDE, Vol. 24, AIP, 760, pp. 624-631 (2005)

12.
A. Saboktakin, C. Ibara-Castanedo, A. H. Bendada and X. Maldague, "Finite element analysis of heat generation in ultrasonic thermography," Proceedings of QIRT, pp. 619-624 (2010)

13.
P. Huthwaite, "Accelerated finite element elastodynamic simulations using the GPU," J of Comp. Phys., Vol. 257, pp. 687-707 (2014) crossref(new window)

14.
G. Dhondt and K. Wittig, Calculix, www.dhondt.de