Detail publikačního výsledku

Associated and non-associated flow rules in the stress state prediction

VOBEJDA, R.; ŠEBEK, F.; PETRUŠKA, J.; KUBÍK, P.

Original Title

Associated and non-associated flow rules in the stress state prediction

English Title

Associated and non-associated flow rules in the stress state prediction

Type

Paper in proceedings (conference paper)

Original Abstract

The paper deals with an application of the non-associated flow rule within a complex plasticity model. This leads to a significant improvement in the predicted stress state. The predicted stress state is closer to theoretical value on the contrary to the case when an associated flow rule – within quadratic or non-quadratic yield criteria – is used. The implementation of a more flexible plasticity model will be subject of a further study. The results suggest that the yield criterion has to be more versatile within Haigh–Westergaard space.

English abstract

The paper deals with an application of the non-associated flow rule within a complex plasticity model. This leads to a significant improvement in the predicted stress state. The predicted stress state is closer to theoretical value on the contrary to the case when an associated flow rule – within quadratic or non-quadratic yield criteria – is used. The implementation of a more flexible plasticity model will be subject of a further study. The results suggest that the yield criterion has to be more versatile within Haigh–Westergaard space.

Keywords

Non-associated flow rule; Yield criterion; Deviatoric stress; Plain strain; Localization

Key words in English

Non-associated flow rule; Yield criterion; Deviatoric stress; Plain strain; Localization

Authors

VOBEJDA, R.; ŠEBEK, F.; PETRUŠKA, J.; KUBÍK, P.

RIV year

2021

Released

24.11.2020

ISBN

978-80-214-5896-3

Book

Engineering Mechanics 2020

Pages from

512

Pages to

515

Pages count

4

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@inproceedings{BUT167752,
  author="Radek {Vobejda} and František {Šebek} and Jindřich {Petruška} and Petr {Kubík}",
  title="Associated and non-associated flow rules in the stress state prediction",
  booktitle="Engineering Mechanics 2020",
  year="2020",
  pages="512--515",
  doi="10.21495/5896-3-512",
  isbn="978-80-214-5896-3"
}