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On the validity regime of the bulge equations

Published online by Cambridge University Press:  04 April 2012

Jan Neggers ,
Johan P.M. Hoefnagels  and
Marc G.D. Geers
Jan Neggers
Affiliation:
Department of Mechanical Engineering, Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
Johan P.M. Hoefnagels*
Affiliation:
Department of Mechanical Engineering, Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
Marc G.D. Geers
Affiliation:
Department of Mechanical Engineering, Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

The plane strain bulge test technique is a powerful and acknowledged technique for characterizing the mechanical behavior of thin films. In a bulge test analysis, the stress and strain are derived from the measured quantities using analytical approximations of the deformed geometry (bulge equations). To improve the bulge test, the systematic error introduced by these approximations is evaluated and quantified by scrutinizing the method on a finite element model of the bulge test, used as an idealized experiment.

Type
Articles
Information
Journal of Materials Research , Volume 27 , Issue 9 , 14 May 2012 , pp. 1245 - 1250
Copyright
Copyright © Materials Research Society 2012

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References

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