Publication detail

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

HRABOVSKÝ, J. LOŠÁK, P. HORSKÝ, J.

Original Title

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

English Title

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

Type

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.

English 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

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

RIV year

2013

Released

10.09.2013

Publisher

OCELOT, Lt., Ostrava, Czech Republic

Location

Ostrava

ISBN

978-80-260-3912-9

Book

STEELSIM 2013

Edition

1

Pages from

21

Pages to

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",
  annote="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.",
  address="OCELOT, Lt., Ostrava, Czech Republic",
  booktitle="STEELSIM 2013",
  chapter="103227",
  edition="1",
  howpublished="electronic, physical medium",
  institution="OCELOT, Lt., Ostrava, Czech Republic",
  year="2013",
  month="september",
  pages="21--22",
  publisher="OCELOT, Lt., Ostrava, Czech Republic",
  type="conference paper"
}