Paper Title:
Incipient Crack Identification in Beam Structures Using the Slope of the Anti-Resonance Curve
  Abstract

Crack damage brings a serious threat to the safety of mechanical and civil structures, and the problem of incipient damage identification of structures has been paying attention as a puzzle by many researchers in recent years. To seek for an alternative solution of the problem, a method for incipient crack localization using the slope of the anti-resonance curve is proposed in this paper. The method makes use of the driving-point mechanical impedance characteristics of cracked beams stimulated by harmonic force. To characterize the local discontinuity due to the presence of crack, a simplified rotational spring model is presented to model the crack. Subsequently, the proposed method is verified by a numerical example of cracked beam under simple support or cantilever boundary conditions.

  Info
Periodical
Edited by
L. Garibaldi, C. Surace, K. Holford and W.M. Ostachowicz
Pages
601-606
DOI
10.4028/www.scientific.net/KEM.347.601
Citation
D. S. Wang, H. P. Zhu, B. He, "Incipient Crack Identification in Beam Structures Using the Slope of the Anti-Resonance Curve", Key Engineering Materials, Vol. 347, pp. 601-606, 2007
Online since
September 2007
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Price
$32.00
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