Materials Science

, Volume 54, Issue 6, pp 855–865 | Cite as

Residual Strength of the Overhead Section of a Main Pipeline with Annular Cracks

  • А. R. DzyubykEmail author
  • L. V. Dzyubyk
  • G. V. Pokhmurs’ka
  • І. А. Prokopyshyn

We propose a procedure for the evaluation the parameters of brittle and ductile fractures of multisupport overhead sections of pipelines weakened by annular semielliptic cracks, which takes into account the membrane, global couple, and residual welding stresses. To describe the process of bending of pipeline, we use the model of a beam with piecewise variable stiffness with regard for the elasticity and possible displacements of the supports, and soil masses.


overhead crossings of pipelines annular cracks brittle fracture ductile fracture 


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • А. R. Dzyubyk
    • 1
    Email author
  • L. V. Dzyubyk
    • 1
  • G. V. Pokhmurs’ka
    • 1
  • І. А. Prokopyshyn
    • 1
    • 2
  1. 1.“L’vivs’ka Politekhnika”National UniversityLvivUkraine
  2. 2.I. Franko Lviv National UniversityLvivUkraine

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