TY - JOUR
T1 - Experimental determination of strain partitioning among individual grains in the bulk of an aluminium multicrystal
AU - Haldrup, Martin Kristoffer
AU - Beckmann, F.
AU - Nielsen, Søren Fæster
AU - Wert, John A.
PY - 2008
Y1 - 2008
N2 - A recently developed marker-based technique for mapping of the displacement gradient tensor and the strain throughout the bulk of optically opaque specimens is presented and applied to an aluminium alloy multicrystal. Through investigations at 4%, 10% and 14% axial strains, the internal strain field is observed to be non-homogenous with the observed patterns present throughout the range of strains investigated. The morphology of the strain field is visualized with a resolution better than 50 mu m and variations are tentatively associated with the grain structure as recorded by EBSD. Future applications of the technique in combination with other 3-dimensional approaches are discussed with respect to comparison with Finite Element modelling approaches. (c) 2007 Elsevier Inc. All rights reserved.
AB - A recently developed marker-based technique for mapping of the displacement gradient tensor and the strain throughout the bulk of optically opaque specimens is presented and applied to an aluminium alloy multicrystal. Through investigations at 4%, 10% and 14% axial strains, the internal strain field is observed to be non-homogenous with the observed patterns present throughout the range of strains investigated. The morphology of the strain field is visualized with a resolution better than 50 mu m and variations are tentatively associated with the grain structure as recorded by EBSD. Future applications of the technique in combination with other 3-dimensional approaches are discussed with respect to comparison with Finite Element modelling approaches. (c) 2007 Elsevier Inc. All rights reserved.
KW - Energiteknologier på vej
U2 - 10.1016/j.matchar.2007.07.006
DO - 10.1016/j.matchar.2007.07.006
M3 - Journal article
SN - 1044-5803
VL - 59
SP - 842
EP - 851
JO - Materials Characterization
JF - Materials Characterization
IS - 7
ER -