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Figure 5
Methods for shear strain measurements. Z is the torsion axis. (a) Motion of the marker (white arrow) with increasing anvil twisting angle in XRT images. (b) Theoretical transfer of simple shear strain in a cylindrical sample under torsion, and formula for simple shear strain used here; r is the radius to the marker location, θ is the measured twisting angle in the sample, AB shows the marker motion and defines the arc length of θ, AC is half of the height of the sample, and γ is the simple shear strain.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 30| Part 5| September 2023| Pages 962-977
https://doi.org/10.1107/S1600577523005374
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