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os e of for challenging material to accurately model because it exhibits four different slip modes and at least three different defor-rather than on a continuum approach. To date, only a single study [2] using a limited experimental data set has been con-ducted using crystal plasticity to model uranium. Several studies in the 1950s through the early 1970s examined the deformation mechanisms active in single-crystal and large-grained uranium [1,3–6], and there hav