Description of anisotropy and the Bauschinger effect on various types of steel sheets

Fusahito Yoshida, Hiroshi Hamasaki, Takeshi Uemori

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

Abstract

To describe the anisotropy of sheets a sixth-order polynomial type 3D yield function is proposed. The yield function is constructed as a sum of several components of the Cazacu-Barlat function (2001) which was derived as an extension of the J2-J3 Drucker yield criterion (1949) to orthotropy using the linear transformation of the stress deviator. In this framework of modeling, the convexity of the yield locus is perfectly guaranteed. The model was validated by comparing the numerical predictions of planar anisotropy of r-values and flow stress directionality, as well as the shape of yield loci, with the corresponding experimental data on several types of steel sheets (high r-valued IF steel and SPCE, and high strength steel sheets of 440-980MPa TS grades). For most of steel sheets, the model of the sum of two J2 components, which involve eight anisotropic coefficients, is sufficient for the description of their anisotropies. For the description of the Bauchinger effect and cyclic workhardening characteristic, Yoshida-Uemori kinematic hardening model (2002a, 2002b, 2003) was employed, which includes a new proposal to describe non-saturation type workhardening.

Original languageEnglish
Title of host publication11th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2013
Pages158-165
Number of pages8
DOIs
Publication statusPublished - Jun 7 2013
Externally publishedYes
Event11th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2013 - Shenyang, China
Duration: Jul 6 2013Jul 10 2013

Publication series

NameAIP Conference Proceedings
Volume1532
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other11th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2013
CountryChina
CityShenyang
Period7/6/137/10/13

Keywords

  • Anisotropic yield function
  • Plasticity
  • Steel sheets
  • Yoshida-Uemori kinematic hardening model

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Yoshida, F., Hamasaki, H., & Uemori, T. (2013). Description of anisotropy and the Bauschinger effect on various types of steel sheets. In 11th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2013 (pp. 158-165). (AIP Conference Proceedings; Vol. 1532). https://doi.org/10.1063/1.4806820