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 publicationAIP Conference Proceedings
Pages158-165
Number of pages8
Volume1532
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event11th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2013 - Shenyang, China
Duration: Jul 6 2013Jul 10 2013

Other

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

Fingerprint

Bauschinger effect
steels
anisotropy
loci
convexity
linear transformations
high strength steels
hardening
proposals
grade
polynomials
kinematics
coefficients
predictions

Keywords

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

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Yoshida, F., Hamasaki, H., & Uemori, T. (2013). Description of anisotropy and the Bauschinger effect on various types of steel sheets. In AIP Conference Proceedings (Vol. 1532, pp. 158-165) https://doi.org/10.1063/1.4806820

Description of anisotropy and the Bauschinger effect on various types of steel sheets. / Yoshida, Fusahito; Hamasaki, Hiroshi; Uemori, Takeshi.

AIP Conference Proceedings. Vol. 1532 2013. p. 158-165.

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

Yoshida, F, Hamasaki, H & Uemori, T 2013, Description of anisotropy and the Bauschinger effect on various types of steel sheets. in AIP Conference Proceedings. vol. 1532, pp. 158-165, 11th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2013, Shenyang, China, 7/6/13. https://doi.org/10.1063/1.4806820
Yoshida, Fusahito ; Hamasaki, Hiroshi ; Uemori, Takeshi. / Description of anisotropy and the Bauschinger effect on various types of steel sheets. AIP Conference Proceedings. Vol. 1532 2013. pp. 158-165
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