DOI

The problem of mechanochemical corrosion of a vertically standing or hanging elastic tube under its own weight is considered. The influence of a local smooth reduction in the initial thickness of the tube (up to 12.5%) on its durability and manifestation of the mechanochemical effect is studied. The numerical analysis revealed that despite the fact that the presence of a defect reduces the service life of the tube, it only slightly intensifies the mechanochemical effect compared to the same initially perfect tube; therefore, for relatively short, both initially perfect and defective tubes this effect can be ignored. For relatively short tubes, a permissible initial thinning of the tube wall can be taken into account by consideration of the same initially perfect tube with the ultimate residual thickness increased by the depth of the defect. However, for long tubes this approach gives a slightly overstated durability. The effect of the initial thickness of the tube was also investigated.

Original languageEnglish
Article number070034
Number of pages7
JournalAIP Conference Proceedings
Volume1959
Issue number1
DOIs
StatePublished - 2 May 2018
EventInternational Conference on Mechanics - Eighth Polyakhov's Reading - Санкт-Петербургский государственный университет, Санкт-Петербург, Russian Federation
Duration: 30 Jan 20182 Feb 2018

    Research areas

  • MECHANOCHEMICAL GROWTH, ELLIPTIC HOLE, PLASTICITY, SURFACE, DESIGN, BARS

    Scopus subject areas

  • Mathematics(all)

ID: 33874743