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Unstable neck formation in Tensile Bars During High-Rate Tension

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Author

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.

Department/s

Publishing year

2000

Language

English

Document type

Conference paper

Topic

  • Applied Mechanics

Keywords

  • 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