Ultrasonic response to material fatigue

Y. C. Jung, Tribikram Kundu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

In many engineering materials micro-cracks develop when the materials are subjected to repeated loading or fatigue loading. These micro-cracks increase the material attenuation and alter the ultrasonic wave speed. Careful experiments show that as a material is subjected to a greater number of fatigue cycles, its higher order (also known as the nonlinear) acoustic properties change significantly. The percentage change in the nonlinear acoustic properties is greater than the percentage changes in the wave speed and attenuation. However, experimentally it is very difficult to measure these nonlinear acoustic properties. Materials like concrete develop a large number of micro-cracks under fatigue loading and show measurable changes in its attenuation. However, some other materials, such as Plexiglas, apparently do not develop micro-cracks under fatigue loading. They look same, equally transparent, before and after the repeated loading up to the point of its failure. Its longitudinal wave speed and attenuation also do not change by any measurable amount due to the fatigue loading. Changes in the nonlinear ultrasonic properties are too difficult to measure. Can there be any relatively robust ultrasonic measurement to capture the property changes in such materials due to fatigue loading? It is investigated in this paper. It is found that some guided wave propagation characteristics change with fatigue loading. These changes are strong enough to be detected by ordinary ultrasonic measurements without taking help of any highly precise ultrasonic measuring instrument in the experimental setup.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsT. Kundu
Pages180-187
Number of pages8
Volume4335
DOIs
StatePublished - 2001
EventAdvanced Nondestructive Evaluation for Structural and Biological Health Monitoring - Newport Beach, CA, United States
Duration: Mar 6 2001Mar 8 2001

Other

OtherAdvanced Nondestructive Evaluation for Structural and Biological Health Monitoring
CountryUnited States
CityNewport Beach, CA
Period3/6/013/8/01

Fingerprint

fatigue (materials)
ultrasonics
Ultrasonics
Fatigue of materials
Acoustic properties
acoustic properties
cracks
attenuation
Cracks
Ultrasonic measurement
Guided electromagnetic wave propagation
longitudinal waves
Ultrasonic waves
ultrasonic radiation
polymethyl methacrylate
Wave propagation
wave propagation
engineering
Concretes
cycles

Keywords

  • Attenuation
  • Guided wave
  • Material fatigue
  • Repeated loading
  • Ultrasonic response

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Jung, Y. C., & Kundu, T. (2001). Ultrasonic response to material fatigue. In T. Kundu (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4335, pp. 180-187) https://doi.org/10.1117/12.434172

Ultrasonic response to material fatigue. / Jung, Y. C.; Kundu, Tribikram.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / T. Kundu. Vol. 4335 2001. p. 180-187.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jung, YC & Kundu, T 2001, Ultrasonic response to material fatigue. in T Kundu (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 4335, pp. 180-187, Advanced Nondestructive Evaluation for Structural and Biological Health Monitoring, Newport Beach, CA, United States, 3/6/01. https://doi.org/10.1117/12.434172
Jung YC, Kundu T. Ultrasonic response to material fatigue. In Kundu T, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4335. 2001. p. 180-187 https://doi.org/10.1117/12.434172
Jung, Y. C. ; Kundu, Tribikram. / Ultrasonic response to material fatigue. Proceedings of SPIE - The International Society for Optical Engineering. editor / T. Kundu. Vol. 4335 2001. pp. 180-187
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