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A model with nonzero rise time for AE signals

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Abstract

Acoustic emission (AE) signals are conventionally modelled as damped or decaying sinusoidal functions. A major drawback of this model is its negligible or zero rise time. This paper proposes an alternative model, which provides for the rising part of the signal without sacrificing the analytical tractability and simplicity of the conventional model. Signals obtained from the proposed model through computer programs are illustrated for demonstrating their parity with actual AE signals. Analytic expressions for the time-domain parameters, viz., peak amplitude and rise time used in conventional AE signal analysis, are also derived. The model is believed to be also of use in modelling the output signal of any transducer that has finite rise time and fall time.

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References

  • Bhat M R, Murthy C R L 1993 Fatigue damage stages in unidirectional glass-fibre-epoxy composites: identification through acoustic emission technique.Int. J. Fatigue 15: 401–405

    Article  Google Scholar 

  • Drouillard T F 1979Acoustic emission — A bibliography with abstracts (New York: Plenum)

    Google Scholar 

  • Harris D O, Bell R L 1977 The measurement and significance of energy in acoustic emission testing.Exp. Mech. 17: 347–353

    Article  Google Scholar 

  • Liptai R G, Harris D O, Tatro C A 1972 Acoustic emission, ASTM special technical publication 505, ASTM, Philadelphia

    Google Scholar 

  • Lord A E Jr 1975 Acoustic emission.Physical acoustics (eds) W P Mason, R N Thurston (New York: Academic Press) vol. 11, pp 289–353

    Google Scholar 

  • Lord A E Jr 1981 Acoustic emission — an update.Physical acoustics (New York: Academic Press) vol. 15, pp 295–360

    Google Scholar 

  • Murthy C R L, Majeed M A, Pathak S C, Rao A K 1985 In-flight monitoring for incipient cracks in an aeroengine mount: An approach through pattern recognition.J. Acoust. Emission 4: S147-S150

    Google Scholar 

  • Majeed M A, Murthy C R L 1989 An efficient unsupervised pattern recognition procedure for acoustic emission signal analysis.J. Acoust. Emission 8: S16-S18

    Google Scholar 

  • Ono K (ed.) 1978 Fundamentals of acoustic emission.Proc. Joint Meeting of Acoustic Society, Japan and America, Honolulu, Hawai (Los Angeles: Materials Department, UCLA)

    Google Scholar 

  • Rao A K 1990 Acoustic emission and signal analysis.Defence Sci. J. 40: 55–70

    Google Scholar 

  • Miller K R, Mclntire P (eds) 1987Nondestructive testing handbook vol. 5, p. 28

  • Teti R, Dornfeld D 1989 Modelling and experimental analysis of acoustic from metal cutting.J. Eng. Ind. 111: 229–237

    Article  Google Scholar 

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Author notes

  1. M. A. Majeed

    Present address: Department of Computer Science & Engineering, Noorul Islam College of Engineering, Kumaracoil, 629 175, Thuckalay, India

Authors and Affiliations

  1. Department of Aerospace Engineering, Indian Institute of Science, 560 012, Bangalore, India

    M. A. Majeed & C. R. L. Murthy

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  1. M. A. Majeed
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  2. C. R. L. Murthy
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Majeed, M.A., Murthy, C.R.L. A model with nonzero rise time for AE signals. Sadhana 26, 465–474 (2001). https://doi.org/10.1007/BF02703443

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  • DOI: https://doi.org/10.1007/BF02703443

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