Behaviour of viscoelastic-viscoplastic spheres and cylinders—Fully plastic vessel walls
Författare
Summary, in English
The material model consists of a viscoelastic Burgers element and an additional viscoplastic Bingham element when the effective stress exceeds the yield stress. For fully plastic vessel walls, exact closed-form expressions arc derived for the stress and strain state in pressurised or relaxation loaded thick-walled cylinders in plane strain and spheres. For the spherical problem, the material compressibility is accounted for. The influence of the different material parameters on the behaviour of the vessels is evaluated. It is shown that the magnitude of the Maxwell viscosity is of major importance for the long-term behaviour of thick-walled fully plastic vessels.
Avdelning/ar
Publiceringsår
1985
Språk
Engelska
Sidor
561-595
Publikation/Tidskrift/Serie
International Journal of Solids and Structures
Volym
21
Issue
6
Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Ämne
- Mechanical Engineering
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0020-7683