title: On the choice of equivalent stress for the problem of mechanochemical corrosion of spherical members
metadata.name: dc.contributor.author
metadata.value: Sedova, Olga S.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Pronina, Yulia G.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2016-08-02T10:44:48Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2016-08-02T10:44:48Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2016-06
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/2523
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: This paper compares two models of double-sided mechanochemical wear of thick spherical
  members subjected to inner and outer pressure. The corrosion rates on the inner and outer
  surfaces of the sphere are supposed to be linear functions of the corresponding equivalent
  stress. The possible inhibition of the corrosion process is taken into account. One of the models
  compared uses the von Mises stress as the equivalent stress while another model uses the
  maximum principal stress as the equivalent stress. The effect of hydrostatic pressure on the
  durability of the sphere is investigated. It is shown that, unlike the first model, the second one
  reflects the effect of hydrostatic pressure. Within the model using the maximum principal stress,
  the durability may be considerably smaller or larger, depending on the sign of the difference between the inner and outer pressure. It is demonstrated that when the inhibition constant is
  not equal to zero, the difference between the durability calculated by the use of one model and
  the durability calculated by the use of another may reach hundreds percent. It is shown that
  for high-pressure vessels in the conditions of corrosion the maximum principal stress model is
  more appropriate then the von Mises stress model. Refs 30. Figs 3.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: Работа выполнена при частичной финансовой поддержке Российского фонда фундаментальных исследований (грант №   16-08-00890).
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Series 10. Applied Mathematics. Computer Science. Control Processes;Issue 2
metadata.lang: -
metadata.name: dc.subject
metadata.value: mechanochemical corrosion
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: general corrosion
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: high-pressure vessels
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: thick-walled sphere
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: hydrostatic pressure
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: On the choice of equivalent stress for the problem of mechanochemical corrosion of spherical members
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: Седова_Пронина.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/2523/1/%d0%a1%d0%b5%d0%b4%d0%be%d0%b2%d0%b0_%d0%9f%d1%80%d0%be%d0%bd%d0%b8%d0%bd%d0%b0.pdf
resources.format: Adobe PDF
resources.size: 455,51 kB