Stress intensity factor vs. Transversal deflection - how to determine the damage severity?

  • Gillich G
  • Minda A
  • Praisach Z
 et al. 
  • 4


    Mendeley users who have this article in their library.
  • 0


    Citations of this article.


© 2014, Romanian Society of Acoustics. All rights reserved. This paper compare two methods to determine the severity of a damage occurring in cantilever; the first method is well-known in the literature and base on an approach from fracture mechanics, while the second is contrived by the authors and base on the transversal deflection under small loads. First the paper demonstrate the relation existing between the stiffness reduction due to damage (i.e. the value of the transversal deflection) and the change of the natural frequencies, exemplified for three shapes of the transversal cross-section. It is proofed that the relation is valid for all three cases, square, hexagon and circle, the damage depth being accurate determined. Afterwards, the results are compared with that provided by numerous researchers which used the fracture mechanics approach; a good concordance can be found, with the mention that the method developed by us is more accurate. This is justified by the fact that our method does not introduce empirical relations, being based on the formulized physical phenomena alone.

Author-supplied keywords

  • Cantilever beam
  • Damage severity
  • Natural frequency
  • Vibration

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

  • SCOPUS: 2-s2.0-84919326965
  • SGR: 84919326965
  • ISSN: 15847284
  • PUI: 600985754


  • Gilbert Rainer Gillich

  • Andrea Amalia Minda

  • Zeno Iosif Praisach

  • Carla Protocsil

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free