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This paper presents a method for finite element model updating using strain-based power spectral density for damage detection, which is a novel application of modal flexibility curvature (MFC) in the context of power spectral density.

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Abstract

Key findings

  • The proposed method is able to accurately detect damage in structures by updating the finite element model using strain-based power spectral density.
  • The method is shown to be more effective than traditional methods for damage detection, particularly in cases where the damage is small or localized.
  • The use of strain-based power spectral density is found to provide a more accurate representation of the structure's dynamic behavior than traditional modal analysis methods.

Keywords

TrussFinite element methodSensitivity (control systems)Structural health monitoringMetric (unit)Algorithm

Identifiers

DOI
10.1002/stc.1833
Journal
Structural Control and Health Monitoring
Year
2016