Determination of the Anisotropic Hardening of Sheet Metals at Large Strain from Stretch Bending Test

Gustavo Capilla; H. Hamasaki; Fusahito Yoshida; Toshiya Suzuki; Kazuo Okamura

doi:10.4028/www.scientific.net/KEM.725.677

Paper Titles

A Yield Function for Anisotropic Sheet Material Described by 3^rd-Degree Spline Curve and its Applications
p.653

Elastic Modulus Model Based on Dislocation Density and its Application on Aluminum Alloy 5052
p.659

Friction Stir Forming of Aluminum Alloy Gear-Racks
p.665

Effect of Stress Relaxation on Springback of Steel Sheet in Warm Forming
p.671

Determination of the Anisotropic Hardening of Sheet Metals at Large Strain from Stretch Bending Test
p.677

Simple Springback Cause Analysis Using Measured Shapes of Dies and Pressed Part
p.683

On the Scale Dependence of Micro Hydromechanical Deep Drawing
p.689

Equi-Plastic Work Locus of 5000 Series Aluminum Alloy Sheet at Warm Temperature
p.695

Optimum Design of Si-Cr Alloy Springs for Seismic Vibration Isolator
p.700

HomeKey Engineering MaterialsKey Engineering Materials Vol. 725Determination of the Anisotropic Hardening of...

Determination of the Anisotropic Hardening of Sheet Metals at Large Strain from Stretch Bending Test

Abstract:

The present study aims to determine stress-strain curves at large strains of sheet metals under the uniaxial stress state by using the in-plane stretch-bending test. The combined Swift-Voce model, which describes the large-strain work-hardening of materials by means of a weighting coefficient μ, was used for FE simulation of the stretch-bending. The coefficient μ was determined by minimizing the difference in punch stroke vs. bending strain responses between the experimental data and the corresponding experimental results. By using this inverse approach, stress-strain curves of two levels of high-strength steel sheets of a precipitation hardening type, 590R and 780R, in three sheet directions (0, 45 and 90^o from rolling direction), were determined.

You might also be interested in these eBooks

Advances in Engineering Plasticity and its Application XIII

View Preview

Info:

Periodical:

Key Engineering Materials (Volume 725)

Pages:

677-682

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.725.677

Citation:

Cite this paper

Online since:

December 2016

Authors:

Gustavo Capilla*, H. Hamasaki, Fusahito Yoshida, Toshiya Suzuki, Kazuo Okamura

Keywords:

Flow Stress Anisotropy, In-Plane Stretch-Bending Test, Sheet Metal

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] Hill, R., 1948. A theory of yielding and plastic flow of anisotropic metals. Proc. R. Soc. Ser. A. Math., p.281–329.

Google Scholar

[2] Barlat, F., Lege, D.J. & Brem, J.C., 1991. A six-component yield function for anisotropic materials. International Journal of Plasticity, 7(7), p.693–712.

DOI: 10.1016/0749-6419(91)90052-z

Google Scholar

[3] Yoshida, F., Hamasaki, H. & Uemori, T., 2013. A user-friendly 3D yield function to describe anisotropy of steel sheets. International Journal of Plasticity, 45, p.119–139.

DOI: 10.1016/j.ijplas.2013.01.010

Google Scholar

[4] Stoughton, T.B. & Yoon, J.W., 2009. Anisotropic hardening and non-associated flow in proportional loading of sheet metals. International Journal of Plasticity, 25(9), p.1777–1817.

DOI: 10.1016/j.ijplas.2009.02.003

Google Scholar

[5] Barlat, F. et al., 2014. Enhancements of homogenous anisotropic hardening model and application to mild and dual-phase steels. International Journal of Plasticity, 58, p.201–218.

DOI: 10.1016/j.ijplas.2013.11.002

Google Scholar

[6] Yoshida, F., Hamasaki, H. & Uemori, T., 2015. Modeling of anisotropic hardening of sheet metals including description of the Bauschinger effect. International Journal of Plasticity, 75 p.170–188.

DOI: 10.1016/j.ijplas.2015.02.004

Google Scholar