Localization, damage, and fracture of dynamically loaded tensile bars

James Nemes, John Eftis

Research output: Contribution to conferencePaperpeer-review

Abstract

A viscoplastic constitutive theory containing an internal damage variable, representing void volume fraction, is used to model deformation and ductile failure of smooth tensile bars under high rate loading. In the simulations the position of the neck is not always along the centerline, but instead is found to vary as a function of the loading rate. Computed elongation at instability and elongation at fracture is compared to data found in the literature. The theory correctly predicts the increase in elongation with increasing rate of deformation.

Original languageEnglish (US)
Pages545-555
Number of pages11
StatePublished - Dec 1 1995
EventProceedings of the 1995 ASME International Mechanical Congress and Exposition - San Francisco, CA, USA
Duration: Nov 12 1995Nov 17 1995

Other

OtherProceedings of the 1995 ASME International Mechanical Congress and Exposition
CitySan Francisco, CA, USA
Period11/12/9511/17/95

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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