Publication result detail

On the evaluation of strain-hardness reference curves from compression tests

PETRUŠKA, J., MAROŠ, B., JANÍČEK, L.

Original Title

On the evaluation of strain-hardness reference curves from compression tests

English Title

On the evaluation of strain-hardness reference curves from compression tests

Type

Paper in proceedings (conference paper)

Original Abstract

Hardness measurement is a common method of strain inhomogeneity evaluation, applicable regularly as a part of industrial forming processes analysis. The relation between measured hardness and strain is derived from so called strain-hardness reference curves, obtained usually by evaluation of compression tests for given material under relevant thermomechanical conditions. The procedure of reference curves evaluation is traditionally based on mean values of measured hardness and assumed homogeneous strain, obtained at each level of specimen compression. Using such “mean value” reference curves subsequently for local evaluation of strain in the industrial products can be questionable. With the help of numerical simulation of compression test, strain-hardness reference curve is constructed directly from local values. Reliability of the “mean value” reference curves can be thus quantified.

English abstract

Hardness measurement is a common method of strain inhomogeneity evaluation, applicable regularly as a part of industrial forming processes analysis. The relation between measured hardness and strain is derived from so called strain-hardness reference curves, obtained usually by evaluation of compression tests for given material under relevant thermomechanical conditions. The procedure of reference curves evaluation is traditionally based on mean values of measured hardness and assumed homogeneous strain, obtained at each level of specimen compression. Using such “mean value” reference curves subsequently for local evaluation of strain in the industrial products can be questionable. With the help of numerical simulation of compression test, strain-hardness reference curve is constructed directly from local values. Reliability of the “mean value” reference curves can be thus quantified.

Keywords

hrdness mesurement, forming, finite element simulation

Key words in English

hrdness mesurement, forming, finite element simulation

Authors

PETRUŠKA, J., MAROŠ, B., JANÍČEK, L.

Released

03.09.2000

Publisher

A. A. Balkema

Location

Krakow, Polsko

ISBN

90-5809-157-0

Book

8th International Conference on Metal Forming - Metal Forming 2000

Pages from

115

Pages count

5

BibTex

@inproceedings{BUT2194,
  author="Jindřich {Petruška} and Bohumil {Maroš} and Libor {Janíček}",
  title="On the evaluation of strain-hardness reference curves from compression tests",
  booktitle="8th International Conference on Metal Forming - Metal Forming 2000",
  year="2000",
  pages="5",
  publisher="A. A. Balkema",
  address="Krakow, Polsko",
  isbn="90-5809-157-0"
}