Estimation of fatigue life using ultrasonic sensing: A symbolic dynamics approach

Shalabh Gupta, Asok Ray

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

    Abstract

    The paper addresses the issues of diagnosis and prognosis of fatigue failure in mechanical systems using symbolic time series analysis (STSA) of ultrasonic sensor data. Specifically, the paper presents a statistical analysis procedure for online estimation of remaining fatigue life in polycrystalline alloys using STSA-based information from an ensemble of fatigue experiments. This real-time information is useful for monitoring the evolving fatigue damage and life extending control of mechanical structures for prevention of widespread failures. The concept is experimentally validated on 7075-T6 aluminum alloy specimens on a special-purpose fatigue test apparatus that is equipped with ultrasonic flaw detectors and an optical travelling microscope.

    Original languageEnglish (US)
    Title of host publicationProceedings of the 2007 American Control Conference, ACC
    Pages1149-1154
    Number of pages6
    DOIs
    StatePublished - Dec 1 2007
    Event2007 American Control Conference, ACC - New York, NY, United States
    Duration: Jul 9 2007Jul 13 2007

    Other

    Other2007 American Control Conference, ACC
    CountryUnited States
    CityNew York, NY
    Period7/9/077/13/07

    Fingerprint

    Ultrasonics
    Fatigue of materials
    Time series analysis
    Ultrasonic sensors
    Fatigue damage
    Aluminum alloys
    Statistical methods
    Microscopes
    Detectors
    Defects
    Monitoring
    Experiments

    All Science Journal Classification (ASJC) codes

    • Electrical and Electronic Engineering

    Cite this

    Gupta, S., & Ray, A. (2007). Estimation of fatigue life using ultrasonic sensing: A symbolic dynamics approach. In Proceedings of the 2007 American Control Conference, ACC (pp. 1149-1154). [4282229] https://doi.org/10.1109/ACC.2007.4282229
    Gupta, Shalabh ; Ray, Asok. / Estimation of fatigue life using ultrasonic sensing : A symbolic dynamics approach. Proceedings of the 2007 American Control Conference, ACC. 2007. pp. 1149-1154
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    Gupta, S & Ray, A 2007, Estimation of fatigue life using ultrasonic sensing: A symbolic dynamics approach. in Proceedings of the 2007 American Control Conference, ACC., 4282229, pp. 1149-1154, 2007 American Control Conference, ACC, New York, NY, United States, 7/9/07. https://doi.org/10.1109/ACC.2007.4282229

    Estimation of fatigue life using ultrasonic sensing : A symbolic dynamics approach. / Gupta, Shalabh; Ray, Asok.

    Proceedings of the 2007 American Control Conference, ACC. 2007. p. 1149-1154 4282229.

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

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    Gupta S, Ray A. Estimation of fatigue life using ultrasonic sensing: A symbolic dynamics approach. In Proceedings of the 2007 American Control Conference, ACC. 2007. p. 1149-1154. 4282229 https://doi.org/10.1109/ACC.2007.4282229