Vibration analysis of cracked frame structures

Ibrahim A. M., ÖZTÜRK H., Sabuncu M.

STRUCTURAL ENGINEERING AND MECHANICS, vol.45, no.1, pp.33-52, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 45 Issue: 1
  • Publication Date: 2013
  • Doi Number: 10.12989/sem.2013.45.1.033
  • Journal Name: STRUCTURAL ENGINEERING AND MECHANICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.33-52
  • Keywords: cracked frame, free vibration, multi-bay, multi-story, finite element method, CARRYING CONCENTRATED MASSES, FINITE-ELEMENT, NATURAL FREQUENCIES, INPLANE VIBRATIONS, BUCKLING ANALYSIS, PLANE FRAMES, STEEL FRAMES, BEAM, BEHAVIOR, IDENTIFICATION
  • Dokuz Eylül University Affiliated: Yes

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.