Stress strain responses for continuous orthogonal strain path changes with incrasing sharpness

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Abstract

In this article a series of non-proportional orthogonal tests with continuous strain paths are presented. Mild steel was investigated on a biaxial test device that was specifically developed to examine strain path sensitivity. It is shown that a gradual strain path change shows a gradual increase in stress. However, experiments with increasing sharpness in the strain path change show an overshoot in stress which is a typical feature of stress–strain curves from discontinuous strain path changes.
Original languageUndefined
Pages (from-to)381-384
JournalScripta materialia
Volume57
Issue number5
DOIs
Publication statusPublished - 2007

Keywords

  • METIS-246131
  • IR-59681
  • Orthogonal tests
  • Interstitial free (IF) steels
  • Anisotropic behaviour
  • Biaxial test
  • Strain path change

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