Why local damage increases the buckling load of circular plates

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Local material damage is often characterized as degradation of material properties. A recent study has discovered a paradoxical phenomenon that clamped circular plates with a local axisymmetric damage may have a buckling load above that of a corresponding perfect plate. This paper describes a finite element investigation into the buckling behaviour of circular plates with a local axisymmetric damage. The paradoxical results of previous researchers are explained, and observations are made regarding the appropriate modelling of local damage.
Original languageEnglish
Pages (from-to)147-161
Number of pages15
JournalThin-Walled Structures
Issue number2
Publication statusPublished - 1 Jan 1999

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanical Engineering

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