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Effect of closure of collinear cracks on the stress-strain state and the limiting equilibrium of bent shallow shells

  • I. P. ShatskiiEmail author
  • N. V. Makoviichuk
Article

Abstract

The problem of closure of collinear cracks during bending of a shallow shell is considered within the framework of the Kirchhoff theory. Crack closure is described using the model of contact along a line on one of the shell faces. Strain and moment intensity factors and fracture load are studied as functions of shell curvature and defect location, and the distribution of contact forces along the cracks is investigated.

Keywords

shell bending crack closure strength 

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Copyright information

© Pleiades Publishing, Ltd. 2011

Authors and Affiliations

  1. 1.Ivano-Frankovsk Sector of the Podstrigach Institute of Applied Problems of Mechanics and MathematicsNational Academy of Sciences of UkraineIvano-FrankovskUkraine

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