Pulsed thermography model for detecting the internal ferritic steel crack

Authors

  • A. Elhassnaoui Laboratory of Electronics, Instrumentation and Energetic, Faculty of Sciences, B.P 20. 24040 - El Jadida, Morocco. Laboratoire de Génie Industriel, Faculté des Sciences et Techniques B.P : 523 Béni Mellal
  • S. Yadir Laboratory of Electronics, Instrumentation and Energetic, Faculty of Sciences, B.P 20. 24040 - El Jadida, Morocco.
  • A. Saifi Laboratory of Electronics, Instrumentation and Energetic, Faculty of Sciences, B.P 20. 24040 - El Jadida, Morocco.
  • A. Elamiri Laboratory of Electronics, Instrumentation and Energetic, Faculty of Sciences, B.P 20. 24040 - El Jadida, Morocco.
  • S. Sahnoun Laboratory of Electronics, Instrumentation and Energetic, Faculty of Sciences, B.P 20. 24040 - El Jadida, Morocco.

DOI:

https://doi.org/10.34874/IMIST.PRSM/fsejournal-v5i2.28458

Keywords:

characterization, finite element method, Pulsed thermography Non destructive testing, cracks into steel.

Abstract

The cracks in steel parts may occur near the contact surfaces under the effect of concomitant constraints. The growth mechanisms crack and its emergence are not currently known with certainty. With the finite element method we have developed a mathematical model to determine the crack depth from the standard thermal contrast taking into account of the contrast time values. We found that the flux density and pulse duration have no remarkable influence on the thermal image samples. We calculated the proposed model accuracy, and the optimal value of the theoretical measurement time.

The simulation results show that pulsed thermography is adapted to inspection and characterization the
internal cracks into steel.

Downloads

Published

01-02-2016

Issue

Vol. 5 No. 2 (2015)

Section

Physics, Chemistry, Engineering Sciences