Elastic-Plastic Analysis of Axisymmetric Solids Using Isoparametric Finite Elements.
Abstract
Application of special isoparametric finite elements is presented for elastic-plastic analysis of shells of revolution. General isoparametric elements are selected which in the form of a layered system are capable of representing a solid of revolution. The customary Kirchhoff-Love hypothesis is not invoked and the solutions therefore apply both to thin and thick shells of revolution. Sharp discontinuities in geometry, circumferential ribs and/or grooves, as well as cellular walls, may be studied. A special feature is the development of an element permitting sliding at the element interfaces with or without friction. The illustrative examples include a pressure vessel with a circumferential crack in the wall thickness, a circular plate consisting of two discs which can slide along their interface, and shrink-fit of two thick-walled circular cylinders. The solutions are limited to axially symmetric problems. Flow theory of plasticity is used in the inelastic range.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1971
- Accession Number
- AD0721317
Entities
People
- E. P. Popov
- P. K. Larsen
Organizations
- University of California, Berkeley