publication . Doctoral thesis . 2004

Vibration Analysis of Cracked Composite Bending-torsion Beams for Damage Diagnosis

Wang, Kaihong;
Open Access
  • Published: 29 Nov 2004
  • Publisher: Virginia Tech
  • Country: United States
Abstract
An analytical model of cracked composite beams vibrating in coupled bending-torsion is developed. The beam is made of fiber-reinforced composite with fiber angles in each ply aligned in the same direction. The crack is assumed open. The local flexibility concept is implemented to model the open crack and the associated compliance matrix is derived. The crack introduces additional boundary conditions at the crack location and these effects in conjunction with those of material properties are investigated. Free vibration analysis of the cracked composite beam is presented. The results indicate that variation of natural frequencies in the presence of a crack is aff...
Subjects
arXiv: Physics::Geophysics
free text keywords: flutter and divergence, vibration analysis, Info-gap modeling, crack detection, bending-torsion coupling, cracked composite wing, cracked composite
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Doctoral thesis . 2004
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