Ultrasonic measurement of crack opening load for life-extending control of mechanical structures

Dheeraj S. Singh, Abhishek Srivastav, Shalabh Gupta, Eric Keller, Asok Ray

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

7 Citations (Scopus)

Abstract

This paper develops and validates a technique for real-time measurement of crack tip opening load using ultrasonic sensors and its application to life-extending control of mechanical structures. To experimentally validate the proposed measurement technique, fatigue tests have been conducted in the laboratory environment on center-notched 7075-T6 aluminium alloy specimens. The energy of reflected ultrasonic waves is used to detect crack closure and opening phenomena that lead to real-time measurement of crack opening load. Experimental results are compared with the Newman's crack opening stress model under constant amplitude cyclic loading. A life-extending control scheme is proposed by taking advantage of the real-time information on fatigue damage in mechanical structures.

Original languageEnglish (US)
Title of host publication2009 American Control Conference, ACC 2009
Pages210-215
Number of pages6
DOIs
StatePublished - Nov 23 2009
Event2009 American Control Conference, ACC 2009 - St. Louis, MO, United States
Duration: Jun 10 2009Jun 12 2009

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619

Other

Other2009 American Control Conference, ACC 2009
CountryUnited States
CitySt. Louis, MO
Period6/10/096/12/09

Fingerprint

Ultrasonic measurement
Time measurement
Cracks
Ultrasonic sensors
Crack closure
Ultrasonic waves
Fatigue damage
Crack tips
Aluminum alloys
Fatigue of materials

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Singh, D. S., Srivastav, A., Gupta, S., Keller, E., & Ray, A. (2009). Ultrasonic measurement of crack opening load for life-extending control of mechanical structures. In 2009 American Control Conference, ACC 2009 (pp. 210-215). [5160021] (Proceedings of the American Control Conference). https://doi.org/10.1109/ACC.2009.5160021
Singh, Dheeraj S. ; Srivastav, Abhishek ; Gupta, Shalabh ; Keller, Eric ; Ray, Asok. / Ultrasonic measurement of crack opening load for life-extending control of mechanical structures. 2009 American Control Conference, ACC 2009. 2009. pp. 210-215 (Proceedings of the American Control Conference).
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abstract = "This paper develops and validates a technique for real-time measurement of crack tip opening load using ultrasonic sensors and its application to life-extending control of mechanical structures. To experimentally validate the proposed measurement technique, fatigue tests have been conducted in the laboratory environment on center-notched 7075-T6 aluminium alloy specimens. The energy of reflected ultrasonic waves is used to detect crack closure and opening phenomena that lead to real-time measurement of crack opening load. Experimental results are compared with the Newman's crack opening stress model under constant amplitude cyclic loading. A life-extending control scheme is proposed by taking advantage of the real-time information on fatigue damage in mechanical structures.",
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Singh, DS, Srivastav, A, Gupta, S, Keller, E & Ray, A 2009, Ultrasonic measurement of crack opening load for life-extending control of mechanical structures. in 2009 American Control Conference, ACC 2009., 5160021, Proceedings of the American Control Conference, pp. 210-215, 2009 American Control Conference, ACC 2009, St. Louis, MO, United States, 6/10/09. https://doi.org/10.1109/ACC.2009.5160021

Ultrasonic measurement of crack opening load for life-extending control of mechanical structures. / Singh, Dheeraj S.; Srivastav, Abhishek; Gupta, Shalabh; Keller, Eric; Ray, Asok.

2009 American Control Conference, ACC 2009. 2009. p. 210-215 5160021 (Proceedings of the American Control Conference).

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

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N2 - This paper develops and validates a technique for real-time measurement of crack tip opening load using ultrasonic sensors and its application to life-extending control of mechanical structures. To experimentally validate the proposed measurement technique, fatigue tests have been conducted in the laboratory environment on center-notched 7075-T6 aluminium alloy specimens. The energy of reflected ultrasonic waves is used to detect crack closure and opening phenomena that lead to real-time measurement of crack opening load. Experimental results are compared with the Newman's crack opening stress model under constant amplitude cyclic loading. A life-extending control scheme is proposed by taking advantage of the real-time information on fatigue damage in mechanical structures.

AB - This paper develops and validates a technique for real-time measurement of crack tip opening load using ultrasonic sensors and its application to life-extending control of mechanical structures. To experimentally validate the proposed measurement technique, fatigue tests have been conducted in the laboratory environment on center-notched 7075-T6 aluminium alloy specimens. The energy of reflected ultrasonic waves is used to detect crack closure and opening phenomena that lead to real-time measurement of crack opening load. Experimental results are compared with the Newman's crack opening stress model under constant amplitude cyclic loading. A life-extending control scheme is proposed by taking advantage of the real-time information on fatigue damage in mechanical structures.

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Singh DS, Srivastav A, Gupta S, Keller E, Ray A. Ultrasonic measurement of crack opening load for life-extending control of mechanical structures. In 2009 American Control Conference, ACC 2009. 2009. p. 210-215. 5160021. (Proceedings of the American Control Conference). https://doi.org/10.1109/ACC.2009.5160021