Russian Aeronautics

, Volume 61, Issue 3, pp 340–346 | Cite as

Nonlinear Fracture Resistance Parameters for Elements of Aviation Structures under Biaxial Loading

  • V. N. Shlyannikov
  • A. P. ZakharovEmail author
  • A. V. Tumanov
Structural Mechanics and Strength of Flight Vehicles


This study is concerned with practical application of nonlinear deformation and fracture resistance parameters for residual durability estimation of the fuselage elements with operation damage. By means of numerical calculations for the fragment of fuselage skin with central crack the governing parameters of the elastic-plastic crack-tip stress field are determined as a function of biaxial loading. Two variants of modeling of the crack-tip stress field were performed for the panel of homogeneous isotropic material and a set of the special cohesive elements. As a result the assessment of the biaxial loading influence of fracture damage zone state on crack tip stress field in fuselage panel is given.


plastic factor of the stress intensity biaxial loading crack cohesive model 


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Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  • V. N. Shlyannikov
    • 1
    • 2
  • A. P. Zakharov
    • 1
    Email author
  • A. V. Tumanov
    • 1
  1. 1.Kazan Science Center of RASKazanRussia
  2. 2.Tupolev Kazan National Research Technical UniversityKazanRussia

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