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Proceedings Paper

3-dimensional strain fields from tomographic measurements
Author(s): K. Haldrup; S. F. Nielsen; L. Mishnaevsky; F. Beckmann; J. A. Wert
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Paper Abstract

Understanding the distributions of strain within solid bodies undergoing plastic deformations has been of interest for many years in a wide range of disciplines, ranging from basic materials science to biology. However, the desire to investigate these strain fields has been frustrated by the inaccessibility of the interior of most samples to detailed investigation without destroying the sample in the process. To some extent, this has been remedied by the development of advanced surface measurement techniques as well as computer models based on Finite Element methods. Over the last decade, this situation has changed by the introduction of a range of tomographic methods based both on advances in computer technology and in instrumentation, advances which have opened up the interior of optically opaque samples for detailed investigations. We present a general method for assessing the strain in the interior of marker-containing specimens undergoing various types of deformation. The results are compared with Finite Element modelling.

Paper Details

Date Published: 13 September 2006
PDF: 9 pages
Proc. SPIE 6318, Developments in X-Ray Tomography V, 63181B (13 September 2006); doi: 10.1117/12.679043
Show Author Affiliations
K. Haldrup, Risø National Lab. (Denmark)
S. F. Nielsen, Risø National Lab. (Denmark)
L. Mishnaevsky, Risø National Lab. (Denmark)
F. Beckmann, GKSS-Research Ctr., Geesthacht (Germany)
J. A. Wert, Risø National Lab. (Denmark)

Published in SPIE Proceedings Vol. 6318:
Developments in X-Ray Tomography V
Ulrich Bonse, Editor(s)

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