BISPECTRAL ANALYSIS OF THE BILINEAR OSCILLATOR WITH APPLICATION TO THE DETECTION OF FATIGUE CRACKS

• Published in: Journal of sound and vibration Vol. 216; no. 5; pp. 889 - 910
• Main Authors: Rivola, A., White, P.R.
• Format: Journal Article
• Language: English
• Published: London Elsevier Ltd 08.10.1998; Elsevier
• Subjects: Exact sciences and technology; Fundamental areas of phenomenology (including applications); Measurement and testing methods; Measurement methods and techniques in continuum mechanics of solids; Physics; Solid mechanics; Structural and continuum mechanics; Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...); Vibrations and mechanical waves; Measurements; Structure integrity; Crack closure effect; Statistical methods; Vibration test; Cantilever; Experimental study; Modeling; Cantilever beam; Fatigue crack; Non linear oscillator; Spectrum analysis; Testing equipment; Monitoring; Damaging

Damage detection by means of non-destructive testing plays an important role in ensuring the integrity of machine elements and structures. Vibration testing is an effective means of detecting crack development in structures. In this paper the effect of crack closure on the dynamic behaviour of canti...