Click for new scientific resources and news about Corona[COVID-19]

Paper Information

Journal:   AMIRKABIR   FALL 2007-WINTER 2008 , Volume 18 , Number 67-B; Page(s) 41 To 48.
 
Paper: 

FREE VIBRATION OF BEAM WITH DOUBLE-SIDED EDGE CRACKS

 
 
Author(s):  AYAT ELAHI MAJID REZA*, ROKHI H., HASHEMI R.A.
 
* 
 
Abstract: 

In this paper, a finite element model is formulated for dynamic analysis of beams containing two parallel and unequal edge-cracks. First, by using the compliance matrix concept, which accounts for the effect of local flexibility due to the presence of crack in the structure, the stiffness matrix is calculated for a beam element with one edge-crack. The effects of crack depth and its location on the first and third natural frequencies of the beam are investigated. The same model is then extended for an element with a double edge-crack of unequal lengths. Considering the interaction between cracks, the influence of crack depth on free vibration of the beam is investigated. Finally, a new model is developed for a beam element containing two parallel edge-cracks. It is shown that the vibrational behavior of beam is significantly influenced when the second crack approaches the first one.

 
Keyword(s): CRACKED BEAM, FREE VIBRATION, FINITE ELEMENT METHOD, COMPLIANCE MATRIX
 
References: 
  • ندارد
 
  Persian Abstract Yearly Visit 56
 
Latest on Blog
Enter SID Blog