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Shape Change in Compressively Loaded Single Crystals

Published online by Cambridge University Press:  15 February 2011

C.W. Bull ,
C.L. Briant  and
D.A. Lassila
C.W. Bull
Affiliation:
Division of Engineering Brown University Providence, RI 02912
C.L. Briant
Affiliation:
Division of Engineering Brown University Providence, RI 02912
D.A. Lassila
Affiliation:
Lawrence Livermore National Labs 7000 East Avenue Livermore, CA
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Abstract

This paper presents a study of compressively loaded single crystals of tantalum. Strain gauges, interferometry, optical microscopy, and micrometers were employed to measure the deformation caused by loading. All of the measures indicated non-uniform deformation at plastic strains of less than 0.01. By using these measurements we were able to show that surface creation and shape changes of the sample introduce additional components which affected the measurement recorded by the strain gauge.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 779: Symposium W – Multiscale Phenomena in Materials - Experiments and Modeling Related to Mechanical Behavior , 2003 , W5.28
Copyright
Copyright © Materials Research Society 2003

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References

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