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Computational Techniques for Damage Detection, Classification and Quantification

In: Computational Techniques for Structural Health Monitoring

Author

Listed:
  • Srinivasan Gopalakrishnan

    (Indian Institute of Science)

  • Massimo Ruzzene

    (Georgia Institute of Technology)

  • Sathyanarayana Hanagud

    (Georgia Institute of Technology)

Abstract

This chapter presents an overview of techniques used to analyze the dynamic response of structures with the objective of detecting, locating and quantifying structural damage. A quick summary of vibration-based techniques is first provided as an introduction to the strainᾢenergy ratio technique. The ability of the strain energy ratio to locate damage and potentially estimate its severity is illustrated through numerical simulations and experimental results on beams and plates. The extension of the concept to the analysis of the wave propagation response is also presented to demonstrate the generality of the approach. Wave-based techniques for the detection and quantification of damage also include the phase gradient technique, and the mode conversion estimation, which are also presented. The chapter concludes with the detailed presentation of the damage force indicator technique as yet another method for damage localization.

Suggested Citation

  • Srinivasan Gopalakrishnan & Massimo Ruzzene & Sathyanarayana Hanagud, 2011. "Computational Techniques for Damage Detection, Classification and Quantification," Springer Series in Reliability Engineering, in: Computational Techniques for Structural Health Monitoring, chapter 0, pages 407-461, Springer.
    • Handle: RePEc:spr:ssrchp:978-0-85729-284-1_10
    DOI: 10.1007/978-0-85729-284-1_10
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