Influence of anisotropic yield functions on parameters of yoshida-uemori model

Hirotaka Kano, Jiro Hiramoto, Toru Inazumi, Takeshi Uemori, Fusahito Yoshida

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The Yoshida-Uemori model (Y-U model) can be used with any types of yield functions. The calculated stress strain response will be, however, different depending on the function chosen and on the effective plastic strain definition. Thus several modifications to the Y-U model were proposed in the 10th International Conference on Technology of Plasticity [1]. It was ascertained that in the modified Y-U model, the same set of material parameters can be used with von Mises, Hill's 1948, and Hill's 1990 yield function. In this study, Yld2000-2d and Yoshida's 6th-order polynomial type 3D yield function were examined and it was clarified that the same set of Y-U parameters can be used with these yield functions.

Original languageEnglish
Title of host publicationThe Current State-of-the-Art on Material Forming
Subtitle of host publicationNumerical and Experimental Approaches at Different Length-Scales
PublisherTrans Tech Publications Ltd
Number of pages13
ISBN (Print)9783037857199
Publication statusPublished - 2013
Externally publishedYes
Event16th ESAFORM Conference on Material Forming, ESAFORM 2013 - Aveiro, Portugal
Duration: Apr 22 2013Apr 24 2013

Publication series

NameKey Engineering Materials
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795


Other16th ESAFORM Conference on Material Forming, ESAFORM 2013


  • Anisotropic yield function
  • Numerical methods
  • Parameters

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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