Local Strain Calculations Using Electron Backscattered Diffraction (EBSD) Measurements and Digital Image Processing
2011 ◽
Vol 702-703
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pp. 562-565
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Measurement of local strains in poly-crystalline materials, subjected to relatively large plastic deformation, is a challenging problem. In this paper we report a novel approach for the calculation of local strains at microscopic levels using Electron Backscattered Diffraction measurements, and subsequent use of digital image processing and a simple algorithm. Identical grains, of a fully recrystallized commercial AA1050 sheet, were indexed before and after a tensile strain of 0.262. Normal and shear strains were calculated by estimating the changes in grain shape and in plane rotation. An excellent correlation was obtained between measured in-grain misorientation developments and the estimated in-grain von-Mises equivalent strains.
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2016 ◽
Vol 11
(5)
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pp. 9-16
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2009 ◽
Vol 21
(2)
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pp. 121-127
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