Numéro |
J. Phys. IV France
Volume 110, September 2003
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Page(s) | 183 - 188 | |
DOI | https://doi.org/10.1051/jp4:20020691 |
J. Phys. IV France 110 (2003) 183
DOI: 10.1051/jp4:20020691
Ductile failure of steel HY80 under high strain rates and triaxial stress states, experimental results and damage description
S. Abdel-Malek1, Th. Halle2 and L. W. Meyer21 Nordmetall R&C GbR, Einsiedlerstr. 18h, 09235 Burkhardtsdorf, Germany
2 TU Chemnitz, Werkstoffe des Maschinenbaus, 09107 Chemnitz, Germany
Abstract
Ductile fracture investigations are an important part in current research. The simulation of fracture by means of numerical
codes needs precise material data that may be reached from accurate mechanical testing. In order to predict failure processes,
the stress state history as a function of strain development has to be known. In this work tensile tests on HY80 steel were
performed under quasistatic and high strain rate loading conditions at room temperature using smooth and notched specimens.
The force-time and displacement-time behaviour was measured during testing. Additionally, scanning electron microscopy was
used to investigate the fractured surfaces. Furthermore, different models were applied to describe the failure process. FE-calculations
were used to receive the stress state in the material in the region of the notch as a function of strain development.
© EDP Sciences 2003