Corrosion of a thin-walled spherical shell under time dependent internal pressure

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Abstract

Elastic thin-walled closed spherical shell is considered exposing to mechanochemical corrosion under constant external pressure and internal pressure decreasing with time. It is important that the equivalent stressses are chosen to be dependent not only on difference of internal and external pressures but on both internal and external pressure values themselves. We are investigating the dependencies of a vessel lifetime on the rate of pressure decrease, under the assumption that corrosion rate depends linearly on stress.

Original languageEnglish
Title of host publication8th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2019
EditorsEugenio Onate, Manolis Papadrakakis, Bernhard A. Schrefler
PublisherInternational Center for Numerical Methods in Engineering
Pages645-653
Number of pages9
ISBN (Electronic)9788494919459
StatePublished - Apr 2021
Event8th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2019 - Barcelona, Spain
Duration: 3 Jun 20195 Jun 2019

Publication series

Name8th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2019

Conference

Conference8th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2019
CountrySpain
CityBarcelona
Period3/06/195/06/19

Scopus subject areas

  • Applied Mathematics
  • Computational Mathematics

Keywords

  • Durability
  • Mechanochemical corrosion
  • Pressure vessels
  • Spherical shell

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