Growth retardation and healing of cylindrical shell wall cracks under external pressure with different profiles

D. I. Vaisburd, K. E. Evdokimov, O. V. Porutchikova, M. I. Chebodaev

Research output: Contribution to journalArticle

Abstract

Cracks are the most dangerous defects of shells operating at high internal hydrostatic and/or aerodynamic pressures. Unlimited crack growth causes the shell fracture, frequently with catastrophic consequences. It is experimentally established by direct observations of crack growth that cracks respond asymmetrically to compressive and tensile stresses: they grow at tensile stresses but are conserved and even healed at compressive stresses. One of the authors of the present paper was the first who suggested to use this fundamental crack property to retard the crack growth and to harden the shell by its hooping with a stressed bandage or an armor compressing the shell from outside and inverting the tensile stress created by the internal pressure into the compressive stress. In this regard, the problem on mechanical stresses created in the cylindrical shell wall under simultaneous action of external and uniform internal pressures is solved in the present paper.

Original languageEnglish
Pages (from-to)880-886
Number of pages7
JournalRussian Physics Journal
Volume48
Issue number8
DOIs
Publication statusPublished - Aug 2005

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cylindrical shells
healing
cracks
profiles
tensile stress
internal pressure
armor
hydrostatics
compressing
aerodynamics
causes
defects

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Growth retardation and healing of cylindrical shell wall cracks under external pressure with different profiles. / Vaisburd, D. I.; Evdokimov, K. E.; Porutchikova, O. V.; Chebodaev, M. I.

In: Russian Physics Journal, Vol. 48, No. 8, 08.2005, p. 880-886.

Research output: Contribution to journalArticle

Vaisburd, D. I. ; Evdokimov, K. E. ; Porutchikova, O. V. ; Chebodaev, M. I. / Growth retardation and healing of cylindrical shell wall cracks under external pressure with different profiles. In: Russian Physics Journal. 2005 ; Vol. 48, No. 8. pp. 880-886.
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