13 September 2006 3-dimensional strain fields from tomographic measurements
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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.
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K. Haldrup, K. Haldrup, S. F. Nielsen, S. F. Nielsen, L. Mishnaevsky, L. Mishnaevsky, F. Beckmann, F. Beckmann, J. A. Wert, J. A. Wert, } "3-dimensional strain fields from tomographic measurements", Proc. SPIE 6318, Developments in X-Ray Tomography V, 63181B (13 September 2006); doi: 10.1117/12.679043; https://doi.org/10.1117/12.679043
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