Structural Engineering and Mechanics

  • 제34권4호
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  • Pages.475-490
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  • 2010
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

New formulation for vibration analysis of Timoshenko beam with double-sided cracks

  • Ayatollahi, M.R. (Fatigue and Fracture Laboratory, Department of Mechanical Engineering, Iran University of Science and Technology) ;
  • Hashemi, R. (Fatigue and Fracture Laboratory, Department of Mechanical Engineering, Iran University of Science and Technology) ;
  • Rokhi, H. (Fatigue and Fracture Laboratory, Department of Mechanical Engineering, Iran University of Science and Technology)
  • 투고 : 2008.04.28
  • 심사 : 2009.11.27
  • 발행 : 2010.03.10
⟨ 이전 논문 다음 논문 ⟩

초록

It is the intention of this study to synthesize the effects of double-edge cracks on the dynamic characteristics of a beam. The stiffness matrix is first determined for a Timoshenko beam containing two same-line edge cracks. The presented model is then developed for elements with two parallel double-sided cracks, considering the interaction between the stress fields of adjacent cracks. Finally, a finite element code is implemented, to examine the influence of depth and location of double cracks, on the natural frequencies of the damaged system.

키워드

참고문헌

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피인용 문헌

  1. An inverse approach for the calculation of flexibility coefficient of open-side cracks in beam type structures vol.41, pp.2, 2012, https://doi.org/10.12989/sem.2012.41.2.285
  2. Vibration analysis of a cracked beam with axial force and crack identification vol.9, pp.4, 2010, https://doi.org/10.12989/sss.2012.9.4.355