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Behaviour of Viscoelastic-Viscoplastic Spheres and Cylinders-Partly Plastic Vessels walls

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Author

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 partly plastic vessel walls, expressions are 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 partly plastic vessels.

Department/s

Publishing year

1985

Language

English

Pages

573-595

Publication/Series

International Journal of Solids and Structures

Volume

21

Issue

6

Document type

Journal article

Publisher

Elsevier

Topic

  • Mechanical Engineering

Status

Published

ISBN/ISSN/Other

  • ISSN: 0020-7683