Unstable neck formation in Tensile Bars During High-Rate Tension
Författare
Summary, in English
The time evolution of incipient necks is studied numerically for planar and axisymmetric bars subject to high-rate extension. The material is taken to be elastic-plastic and fully non-linear dynamic effects are accounted for. Two main types of growth of necks are observed; stable neck-development that results in fully developed necks and unstable neck-development that leads to weakly developed necks, since the incipient localization stops at an early state.
Avdelning/ar
Publiceringsår
2000
Språk
Engelska
Dokumenttyp
Konferensbidrag
Ämne
- Applied Mechanics
Nyckelord
- necking pattern
- localization zones
- high rate deformation
- stability
Conference name
Second International Symposium on Impact and Friction of Solids, Structures and Intelligent Machines
Conference date
2000-08-08 - 2000-08-12
Conference place
Montreal, Canada
Status
Published