Post-buckling deformation and fracture of a stretched plate with a crack

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Abstract

The tension of the thin plate with a rectilinear crack is considered. It is known that in the neighborhood of the crack appear compressive stresses, which at a certain level of tension could lead to local buckling of the plate. Of interest is the concentration of maximum tensile stresses in plates after buckling.The purpose of the study is to clarify the issue of whether buckling promotes crack growth or leads to the stabilization of deformations. For the analysis of the stress state of the plate in the initial post-critical stage the approximate analytical solution is suggested. The post-buckling stretching the plate with central crack is analyzed by the finite element method using ANSYS code . The effect of the buckling under tension of a plate with a central crack on the level of the stress state is estimated. An analysis of the stress state in the vicinity of the tip of the central crack under uniaxial tension shows that with possible local stability loss near the crack an increase in tensile stresses in the vicinity of the crack tip is observed, and, as a result, load leading to destruction should be reduced.

Original languageEnglish
Title of host publicationCOMPGYN 2019 7th ECCOMAS
Subtitle of host publicationThematic Conf. on Computational Methods in Structural Dynamics and Earthquake Engineering.
EditorsManolis Papadrakakis, Michalis Fragiadakis
Place of PublicationAthens. Greece
PublisherNational Technical University of Athens (NTUA)
Pages3603-3610
Number of pages8
ISBN (Electronic)9786188284470
StatePublished - 1 Jan 2019
Event7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2019 - Crete, Greece, Hersonissos, Greece
Duration: 24 Jun 201926 Jun 2019
Conference number: 7th
https://2019.compdyn.org

Publication series

NameCOMPDYN Proceedings
Volume2
ISSN (Print)2623-3347

Conference

Conference7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2019
Abbreviated title COMPDYN 2019
CountryGreece
CityHersonissos
Period24/06/1926/06/19
Internet address

Scopus subject areas

  • Computers in Earth Sciences
  • Geotechnical Engineering and Engineering Geology
  • Computational Mathematics
  • Civil and Structural Engineering

Keywords

  • Crack
  • Finite element method
  • Fracture
  • Nonlinear buckling analysis
  • Plate
  • Stability
  • Tension

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