Publication detail

Comparison of material models in the study of mechanical properties of the oxide scales

HRABOVSKÝ, J. LOŠÁK, P. HORSKÝ, J.

English title

Comparison of material models in the study of mechanical properties of the oxide scales

Type

Paper in proceedings (conference paper)

Language

en

Original abstract

Heat treatment of steel is tied to many problems. One of the important problems is the growth of the oxide scale layers and their removal in order to obtain high quality of steel surface. The problem of the oxide scales growth and descaling requires a complex analysis. Complexity of analysis also includes the study of mechanical properties of the oxide scale layers. To study the mechanical properties the small punch method was used. The typical result of the small punch tests is force-displacement curve. Small punch test can be considered analogous to a conventional tensile test. Therefore it is necessary to convert measured force-displacement curve to stress-strain curve. The conversion of the measured curves can be carried out by several methods such as analytical or numerical methods. In this paper the numerical method in ANSYS program was used to convert the measured force-displacement curves. Two material models were applied and results for all examined specimens are compared and presented.

Keywords in English

Small Punch , oxide layer, stress-strain curve, Ramberg-Osgood model, Chaboche model, screening, genetic algorithm

Released

2013-09-10

Publisher

OCELOT, Lt., Ostrava, Czech Republic

Location

Ostrava

ISBN

978-80-260-3912-9

Book

STEELSIM 2013

Pages from–to

21–22

Pages count

9

BIBTEX


@inproceedings{BUT103227,
  author="Jozef {Hrabovský} and Petr {Lošák} and Jaroslav {Horský}",
  title="Comparison of material models in the study of mechanical properties of the oxide scales",
  booktitle="STEELSIM 2013",
  year="2013",
  series="1",
  pages="21--22",
  publisher="OCELOT, Lt., Ostrava, Czech Republic",
  address="Ostrava",
  isbn="978-80-260-3912-9"
}