Structural Engineering and Mechanics

  • 제10권1호
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  • Pages.81-92
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  • 2000
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Free vibration analysis of multiple open-edge cracked beams by component mode synthesis

  • Kisa, M. (Cardiff School of Engineering, University of Wales) ;
  • Brandon, J.A. (Cardiff School of Engineering, University of Wales)
  • 발행 : 2000.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

This study is an investigation of the effect of cracks on the dynamical characteristics of a cantilever beam, having multiple open-edge transverse cracks. The flexibilities due to crack have been identified for several crack depths and locations. In the study the finite element method and component mode synthesis methods are used. Coupling the components is performed by a flexibility matrix taking into account the interaction forces. Each component is modelled by cantilever beam finite elements with two nodes and three degrees of freedom at each node. The results obtained lead to conclusion that, by using the drop in the natural frequencies and the change in the mode shapes, the presence and nature of cracks in a structure can be detected. There is some counter-evidence, however, that the effects due to multiple cracks may interact to make detection more difficult than for isolated cracks.

키워드

참고문헌

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피인용 문헌

  1. Free vibration analysis of a cantilever composite beam with multiple cracks vol.64, pp.9, 2004, https://doi.org/10.1016/j.compscitech.2003.11.002
  2. Experimental verification of a method of detection of multiple cracks in beams based on frequency measurements vol.281, pp.1-2, 2005, https://doi.org/10.1016/j.jsv.2004.03.035
  3. Effect of Damage Parameters on Vibration Signatures of a Cantilever Beam vol.38, 2012, https://doi.org/10.1016/j.proeng.2012.06.384
  4. Free vibration analysis of uniform and stepped cracked beams with circular cross sections vol.45, pp.2-8, 2007, https://doi.org/10.1016/j.ijengsci.2007.03.014
  5. Modal analysis of cracked cantilever composite beams vol.20, pp.2, 2005, https://doi.org/10.12989/sem.2005.20.2.143
  6. Modal analysis of multi-cracked beams with circular cross section vol.73, pp.8, 2006, https://doi.org/10.1016/j.engfracmech.2006.01.002
  7. Multiple cracks effects and identification vol.22, pp.4, 2008, https://doi.org/10.1016/j.ymssp.2007.11.008
  8. Detection of multiple cracks using frequency measurements vol.70, pp.12, 2003, https://doi.org/10.1016/S0013-7944(02)00121-2
  9. Crack identification based on Kriging surrogate model vol.41, pp.1, 2000, https://doi.org/10.12989/sem.2012.41.1.025
  10. Vibration analysis of a cracked beam with axial force and crack identification vol.9, pp.4, 2000, https://doi.org/10.12989/sss.2012.9.4.355
  11. Vibration and stability of axially loaded cracked beams vol.44, pp.3, 2000, https://doi.org/10.12989/sem.2012.44.3.305