Publication detail

Behavior of Lode Dependent Plasticity at Plane Strain Condition and its Implication to Ductile Fracture

ŠEBEK, F. PETRUŠKA, J. KUBÍK, P.

Original Title

Behavior of Lode Dependent Plasticity at Plane Strain Condition and its Implication to Ductile Fracture

English Title

Behavior of Lode Dependent Plasticity at Plane Strain Condition and its Implication to Ductile Fracture

Type

conference paper

Language

en

Original Abstract

Variety of metals are complex materials exhibiting various behavior under different loading. Many metallic materials exhibit Tresca-like behavior rather than von Mises. It means different behavior in tension under plane strain and uniaxial stress conditions. This might be described by Lode dependent plasticity which should result in better prediction in force or torque responses of material tests. Good agreement between computation and experiment is also very important when calibrating the ductile fracture criteria. Several tests under plane strain and uniaxial stress states were carried out on aluminum alloy 2024-T351 where the Lode dependency was significant. The Lode dependent plasticity was implemented along with von Mises and Tresca-like yield criteria, which resulted in improvement of force–displacement responses of plane strain tests simulations. But it also caused significant change in the stress state of tensile flat and grooved plates which wrongly approached uniaxial tension condition. This inconvenience prevents plane strain experiments from using for calibration of ductile fracture criteria under these circumstances.

English abstract

Variety of metals are complex materials exhibiting various behavior under different loading. Many metallic materials exhibit Tresca-like behavior rather than von Mises. It means different behavior in tension under plane strain and uniaxial stress conditions. This might be described by Lode dependent plasticity which should result in better prediction in force or torque responses of material tests. Good agreement between computation and experiment is also very important when calibrating the ductile fracture criteria. Several tests under plane strain and uniaxial stress states were carried out on aluminum alloy 2024-T351 where the Lode dependency was significant. The Lode dependent plasticity was implemented along with von Mises and Tresca-like yield criteria, which resulted in improvement of force–displacement responses of plane strain tests simulations. But it also caused significant change in the stress state of tensile flat and grooved plates which wrongly approached uniaxial tension condition. This inconvenience prevents plane strain experiments from using for calibration of ductile fracture criteria under these circumstances.

Keywords

Lode angle; von Mises yield criterion; Tresca-like behavior; ductile fracture; plane strain

Released

11.01.2017

ISBN

978-3-03835-626-4

Book

Materials Structure & Micromechanics of Fracture VIII

Pages from

213

Pages to

216

Pages count

4

BibTex


@inproceedings{BUT130442,
  author="František {Šebek} and Jindřich {Petruška} and Petr {Kubík}",
  title="Behavior of Lode Dependent Plasticity at Plane Strain Condition and its Implication to Ductile Fracture",
  annote="Variety of metals are complex materials exhibiting various behavior under different loading. Many metallic materials exhibit Tresca-like behavior rather than von Mises. It means different behavior in tension under plane strain and uniaxial stress conditions. This might be described by Lode dependent plasticity which should result in better prediction in force or torque responses of material tests. Good agreement between computation and experiment is also very important when calibrating the ductile fracture criteria. Several tests under plane strain and uniaxial stress states were carried out on aluminum alloy 2024-T351 where the Lode dependency was significant. The Lode dependent plasticity was implemented along with von Mises and Tresca-like yield criteria, which resulted in improvement of force–displacement responses of plane strain tests simulations. But it also caused significant change in the stress state of tensile flat and grooved plates which wrongly approached uniaxial tension condition. This inconvenience prevents plane strain experiments from using for calibration of ductile fracture criteria under these circumstances.",
  booktitle="Materials Structure & Micromechanics of Fracture VIII",
  chapter="130442",
  doi="10.4028/www.scientific.net/SSP.258.213",
  howpublished="print",
  number="1",
  year="2017",
  month="january",
  pages="213--216",
  type="conference paper"
}