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Structural Engineering and Mechanics
  Volume 45, Number 1, January10 2013, pages 033-52
DOI: http://dx.doi.org/10.12989/sem.2013.45.1.033
 


Vibration analysis of cracked frame structures
Ahmed M. Ibrahim, Hasan Ozturk and Mustafa Sabuncu

 
Abstract
    In this study, the effects of crack depth and crack location on the in-plane free vibration of cracked frame structures have been investigated numerically by using the Finite Element Method. For the rectangular cross-section beam, a crack element is developed by using the principles of fracture mechanics. The effects of crack depth and location on the natural frequency of multi-bay and multi-store frame structures are presented in 3D graphs. The comparison between the present work and the results obtained from ANSYS shows a very good agreement.
 
Key Words
    cracked frame; free vibration; multi-bay; multi-story; finite element method
 
Address
Ahmed M. Ibrahim, Hasan Ozturk: Mechanical Engineering Department, Dokuz Eylul University Buca, Izmir, Turkey
Mustafa Sabuncu: The Graduate School of Natural and Applied Sciences, Dokuz Eylul University,
Tinaztepe, Buca, Izmir, Turkey
 

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