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ARTICLE
Stress Modified Critical Strain criterion for S235JR steel at low initial stress triaxiality
1
Kielce University of Technology, Faculty of Civil Engineering and Architecture, Kielce, Poland
Journal of Theoretical and Applied Mechanics 2014;52(4):995-1006
KEYWORDS
Stress Modified Critical Strain (SMCS) criterionGurson-Tvergaard-Needleman (GTN) material modelnumerical simulationsS235JR steel
ABSTRACT
Ductile fracture of low carbon structural steel (S235JR) at low initial stress triaxiality has been predicted using a method based on the Stress Modified Critical Strain (SMCS) criterion and the Gurson-Tvergaard-Needleman (GTN) material model. The influence of micro-defects on the material strength has been taken into account. The investigations, including tensile tests, have been conducted for standard cylindrical unnotched tensile specimens at low triaxial stresses. An advanced finite element method has been used to determine several SMCS model parameters.
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| eISSN: | 2543-6309 |
| ISSN: | 1429-2955 |
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