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Prediction of Crack Locations using Non Destructive Tests


  • Department of Civil Engineering, National Institute of Technology, Raipur, India


Objectives: In this paper non destructive tests are used to find the location of multiple cracks in the cantilever beam. Methods/ Analysis: The impact echo test along with Ultrasonic Pulse Velocity (UPV) test is used to find the crack locations. These tests are conducted on cantilever beam having two cracks at different positions. The frequency spectrum is recorded from the impact echo test. While the ultrasonic pulse time is recorded from ultrasonic pulse velocity test. A MATLAB based code is used to find out the dominant frequency of the sound signals corresponding to each impact echo test. The ultrasonic pulse velocities are calculated from the travel time and the distance between the transducers. Findings: It was found that the frequency values are increasing when the cracks move away from the fixed end of the cantilever beam since the frequency ratio increases when the distance of the crack increases from fixed end (based on Equation 3). Ultrasonic pulse velocity also increases since the distance between the transducers of the UPV equipment decreases when the location of crack changes. Applications/Improvements: From the values of frequency and ultrasonic pulse velocity, mathematical expressions of crack location are developed. The developed expressions are tested on the cantilever beam to find the crack locations in a laboratory model.


Crack Location, Impact Echo Test, MATLAB, Multiple Cracks, Non Destructive Tests, Ultrasonic Pulse Velocity Test.

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  • Shinde YD, Katekar SD. Vibration Analysis of Cantilever beam with Single Crack using Experimental Method. International Journal of Engineering Research and Technology (IJERT). 2014 May; 3(5):1644-48.
  • Yamuna P, Sambasivarao K. Vibration Analysis of Beam with Varying Crack Location. International Journal of Engineering Research and General Science. 2014; 2(6):1008-17.
  • Patil Amit V, Pathak M, Sharma PK. Theoretical and Software analysis of Crack detection in Structure. International Journal of Engineering and Technical Research (IJETR). 2014 May; 2(5):160-63.
  • Rane HS, Barjibhe RB, Patil AV. Free Vibration Analysis of Cracked Structure. International Journal of Engineering Research & Technology (IJERT).2014 Feb; 3(2):2816-22.
  • Chaudhari CC, Gaikwad JA, Bhanuse VR, Kulkarni JV. Experimental Investigation of Crack Detection in Cantilever Beam using Vibration Analysis. First International Conference on Networks and Soft Computing, 2014Aug, p. 130-34.
  • Bhinge KV, Karajagi PG, Kulkarni SS. Crack Detection in Cantilever Beam by Vibration Techniques. International Journal of Advanced Engineering Research and Studies. 2014Sept; 1-7.
  • Meshram NA, Pawar VS. Analysis of Crack Detection of a Cantilever Beam using Finite Element Analysis. International Journal of Engineering Research and Technology (IJERT). 2015 Apr; 4(4):713-18.
  • Yan Y. Ultrasonic testing of the application of the concrete defects. International Conference on Education Technology and Management Science. ICETMS’13, 2013, p. 319-21.
  • Bingo Y, Okeil AM. Ultrasonic Signal Characteristics for Nondestructive-Yield Detection in Steel Structures. Journal of Materials in Civil Engineering. 2015; 27(10):4014271-82.
  • Masserey B. Ultrasonic surface crack characterization using Rayleigh waves. Swiss Federal Institute of Technology: Zurich, 2006.
  • Dixon S, Burrows SE, Dutton B, Fan Y. Detection of cracks in metal sheets using pulsed laser generated ultrasound and EMAT detection. Ultrasonics. 2011 Jan; 51(1):7-16.
  • Sudheera K, Nandhitha NM. Application of Hilbert Transform for Flaw Characterization in Ultrasonic Signals. Indian Journal of Science and Technology. 2015 July; 8(13):1-6.
  • Maheshwari M, Asundi AK, Tjin SC. Effect of the location and size of a single crack on first fundamental frequency of a cantilever beam using Fiber Optic Polarimetric sensors and characterization of FBG sensors. 4thInternational Conference on Smart Materials Nanotechnology in Engineering, 2013 Aug.


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