Modeling the ductile fracture and the plastic anisotropy of DC01 steel at room temperature and low strain rates
V Tuninetti, S Yuan, G Gilles, CF Guzmán… - Journal of Physics …, 2016 - iopscience.iop.org
Journal of Physics: Conference Series, 2016•iopscience.iop.org
This paper presents different extensions of the classical GTN damage model implemented in
a finite element code. The goal of this study is to assess these extensions for the numerical
prediction of failure of a DC01 steel sheet during a single point incremental forming process,
after a proper identification of the material parameters. It is shown that the prediction of
failure appears too early compared to experimental results. Though, the use of the
Thomason criterion permitted to delay the onset of coalescence and consequently the final …
a finite element code. The goal of this study is to assess these extensions for the numerical
prediction of failure of a DC01 steel sheet during a single point incremental forming process,
after a proper identification of the material parameters. It is shown that the prediction of
failure appears too early compared to experimental results. Though, the use of the
Thomason criterion permitted to delay the onset of coalescence and consequently the final …
Abstract
This paper presents different extensions of the classical GTN damage model implemented in a finite element code. The goal of this study is to assess these extensions for the numerical prediction of failure of a DC01 steel sheet during a single point incremental forming process, after a proper identification of the material parameters. It is shown that the prediction of failure appears too early compared to experimental results. Though, the use of the Thomason criterion permitted to delay the onset of coalescence and consequently the final failure.
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