A Procedure for the Evaluation of Flow Stress of Sheet Metal by Hydraulic Bulge Test Using Elliptical Dies

Lucian Lazarescu; Ioan Pavel Nicodim; Dan Sorin Comsa; Dorel Banabic

doi:10.4028/www.scientific.net/KEM.504-506.107

Paper Titles

Evolution of Roughness on Straining of Interstitial Free – IF Steel Sheet
p.83

Anisotropic Plastic Behavior of TRIP 780 Steel Sheet in Hole Expansion Test
p.89

Study of True Stress-Strain Curve after Necking for Application in Ductile Fracture Criteria in Tube Hydroforming of Aerospace Material
p.95

Failure Prediction in Sheet Metal Forming Depending in Pre-Straining and Bending Superposition
p.101

A Procedure for the Evaluation of Flow Stress of Sheet Metal by Hydraulic Bulge Test Using Elliptical Dies
p.107

Methodology to Produce Locally Heat-Treated EN AW-5182 Aluminum Alloy Sheet Metal Parts
p.113

Laser Beam Structured Sheets – A New Potential for Sheet Metal Forming
p.119

Elasto-Plastic Models with Continuously Distributed Dislocations and Disclinations
p.125

Failure Evaluation of Spot Welds for Advanced High Strength Steel Sheets
p.131

HomeKey Engineering MaterialsKey Engineering Materials Vols. 504-506A Procedure for the Evaluation of Flow Stress of...

A Procedure for the Evaluation of Flow Stress of Sheet Metal by Hydraulic Bulge Test Using Elliptical Dies

Abstract:

The paper describes a new experimental procedure for the determination of the curves relating the equivalent stress and equivalent strain of sheet metals by means of the hydraulic bulge tests through elliptical dies. The procedure is based on an analytical model of the bulging process and involves the measurement of only two parameters (pressure acting on the surface of the specimen and polar deflection).

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 504-506)

Pages:

107-112

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.504-506.107

Citation:

Cite this paper

Online since:

February 2012

Authors:

Lucian Lazarescu, Ioan Pavel Nicodim, Dan Sorin Comsa, Dorel Banabic

Keywords:

Analytical Approach, Elliptical Die, Flow Stress, Hydraulic Bulge Test

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] M.I. Yousif, J. L. Duncan and W. Johnson, Plastic deformation and failure of thin elliptical diaphragms, Int. J. Mech. Sci. 12 (1970) 959-972.

DOI: 10.1016/0020-7403(70)90036-6

Google Scholar

[2] D. Banabic, T. Bălan and D.S. Comşa, Closed-form solution for bulging through elliptical dies, J. Mater. Process. Tech. 115 (2001) 83-86.

DOI: 10.1016/s0924-0136(01)00773-7

Google Scholar

[3] A.R. Ragab, O.E. Habib, Determination of the equivalent stress versus equivalent strain rate behaviour of superplastic alloys in biaxial stress systems, Mater. Sci. Eng. 64 (1984) 5-14.

DOI: 10.1016/0025-5416(84)90068-5

Google Scholar

[4] D.W.A Rees, Plastic flow in the elliptical bulge test, Int. J. Mech. Sci. 37 (1995) 373-389.

Google Scholar

[5] L. Lăzărescu, D.S. Comşa, D. Banabic, Analytical and experimental evaluation of the stress-strain curves of sheet metals by hydraulic bulge tests, Key Eng. Mat. 473 (2011) 352-359.

DOI: 10.4028/www.scientific.net/kem.473.352

Google Scholar

[6] L. Lăzărescu, D.S. Comşa, D. Banabic, Determination of stress-strain curves of sheet metals by hydraulic bulge test, AIP Conf. Proc. 1353 (2011) 1429-1434.

DOI: 10.1063/1.3589717

Google Scholar

[7] A.A. Kruglov, F.U. Enikeev and R.Y. Lutfullin, Superplastic forming of a spherical shell out a welded envelope, Mat. Sci. Eng. A323 (2002) 416-426.

DOI: 10.1016/s0921-5093(01)01376-4

Google Scholar

[8] S. P. Timoshenko, S. W. Krieger, Theory of plates and shells, McGraw-Hill, 1959.

Google Scholar