Notched Strip Tensile Tests to Determine Yield Characteristics of Stainless Steel
Publication: Journal of Engineering Mechanics
Volume 140, Issue 4
Abstract
This paper investigates the use of notched strip tensile tests, previously proposed, to determine the yield characteristics of stainless steel. The original concept is thereby improved in two important ways. First, digital image correlation techniques are used to allow an accurate measurement of strain rates in a very localized area. Second, new theoretical developments are presented that eliminate the need for measuring the applied load and allow the yield surface of an anisotropic material to be determined starting from a parameterized equation. An experimental program is described where the method has been successfully applied to a ferritic grade as well as an austenitic grade stainless steel. As a disadvantage, a relatively large scatter in test results appears to be intrinsic to the method of notched strip tests.
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Acknowledgments
The authors extend their gratitude to Outokumpu Sheffield and, in particular, to Mr. Jamie Sharp and Mr. Andy Backhouse for their support of this research through the donation of the materials used in the experimental program.
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Published In
Journal of Engineering Mechanics
Volume 140 • Issue 4 • April 2014
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Apr 3, 2013
Accepted: Aug 19, 2013
Published online: Aug 21, 2013
Published in print: Apr 1, 2014
Discussion open until: May 30, 2014
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