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3.
Zhonghua Nei Ke Za Zhi ; 57(12): 932-934, 2018 Dec 01.
Article in Chinese | MEDLINE | ID: mdl-30486565
5.
Zhonghua Nei Ke Za Zhi ; 55(8): 648-50, 2016 Aug 01.
Article in Chinese | MEDLINE | ID: mdl-27480566
6.
Rev Sci Instrum ; 85(7): 076101, 2014 Jul.
Article in English | MEDLINE | ID: mdl-25085186

ABSTRACT

We present a dynamic strain field mapping method based on synchrotron X-ray digital image correlation (XDIC). Synchrotron X-ray sources are advantageous for imaging with exceptional spatial and temporal resolutions, and X-ray speckles can be produced either from surface roughness or internal inhomogeneities. Combining speckled X-ray imaging with DIC allows one to map strain fields with high resolutions. Based on experiments on void growth in Al and deformation of a granular material during Kolsky bar/gas gun loading at the Advanced Photon Source beamline 32ID, we demonstrate the feasibility of dynamic XDIC. XDIC is particularly useful for dynamic, in-volume, measurements on opaque materials under high strain-rate, large, deformation.

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