<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">The influence of Tvergaard's parameters <italic>qi</italic> of Gurson-Tvergaard-Needleman (GTN) material model on S235JR steel response was considered in the study. The analysis concerns the strength curves simulated numerically for notched tensile elements under static tension in complex stress state defined by high initial stress triaxiality σ<italic>m</italic>/σ<italic>e</italic> > 1. Typical and material-dependent values of Tvergaard's parameters <italic>qi</italic> were examined. The influence of the Tvergaard's parameters <italic>qi</italic> on material response was noticed at the failure range for S235JR steel in the case of high stress triaxiality.</abstract>

The influence of Tvergaard's parameters qi of Gurson-Tvergaard-Needleman (GTN) material model on S235JR steel response was considered in the study. The analysis concerns the strength curves simulated numerically for notched tensile elements under static tension in complex stress state defined by high initial stress triaxiality σm/σe > 1. Typical and material-dependent values of Tvergaard's parameters qi were examined. The influence of the Tvergaard's parameters qi on material response was noticed at the failure range for S235JR steel in the case of high stress triaxiality.

The analysis of influence of Tvergaard's parameters on S235JR steel response in high stress triaxiality

Faculty of Civil and Environmental Engineering, Chair of Strength of Materials and Concrete Structures, Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, Poland

Advances in Materials Science

The influence of Tvergaard's parameters qi of Gurson-Tvergaard-Needleman (GTN) material model on S235JR steel response was considered in the study. The...

The analysis of influence of Tvergaard's parameters on S235JR steel response in high stress triaxiality

Publié en ligne: 07 août 2012

Pages: 27 - 35

DOI: https://doi.org/10.2478/v10077-012-0003-6

Mots clés
Tvergaard's parameters, Gurson-Tvergaard-Needleman material model, GTN, high stress triaxiality, S235JR steel

This content is open access.

The analysis of influence of Tvergaard's parameters on S235JR steel response in high stress triaxiality

Publié en ligne: 07 août 2012

Pages: 27 - 35

DOI: https://doi.org/10.2478/v10077-012-0003-6

Mots clésTvergaard's parameters, Gurson-Tvergaard-Needleman material model, GTN, high stress triaxiality, S235JR steel

This content is open access.

Mots clés
Tvergaard's parameters, Gurson-Tvergaard-Needleman material model, GTN, high stress triaxiality, S235JR steel