^ Buckling Analysis of Cracked Column Structures and Piezoelectric-based Repair and Enhancement of Axial Load Capacity | Structurae
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Buckling Analysis of Cracked Column Structures and Piezoelectric-based Repair and Enhancement of Axial Load Capacity

Author(s):

Medium: journal article
Language(s): English
Published in: International Journal of Structural Stability and Dynamics, , n. 1, v. 3
Page(s): 17-33
DOI: 10.1142/s0219455403000793
Abstract:

Decreased flexural and buckling capacity of composite structures due to the development of fatigue cracks is a serious issue in a variety of fields. This paper discusses the buckling capacity and piezoelectric material enhancement of cracked column structures. A model of the rotational discontinuity at the crack location is used to develop analytical buckling solutions and the effect of crack location and intensity on the buckling capacity of the damaged columns is investigated. Small piezoelectric patches are employed to induce local moments to compensate for the decreased buckling capacity of column structures, using a mechanical model coupled with piezoelectric strain-voltage relations. The voltages required to enhance the buckling capacity are analytically determined and the general relationship between crack location and voltage developed. The primary advantage of the piezoelectric-based repair approach presented is the ability to use a single small patch, with different applied voltages, to repair cracks of a wide variety of depths, intensities and locations passive design solutions would require custom designs to restore the axial load capacity for each case.

Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1142/s0219455403000793.
  • About this
    data sheet
  • Reference-ID
    10353309
  • Published on:
    14/08/2019
  • Last updated on:
    14/08/2019