Abstract:Microscale dynamic testing is vital to the understanding of material behavior at application relevant strain rates. However, despite two decades of intense micromechanics research, the testing of microscale metals has been largely limited to quasi-static strain rates. Here we report the dynamic compression testing of pristine 3D printed copper micropillars at strain rates from ∼ 0.001 s −1 to ∼ 500 s −1 . It was identified that microcrystalline copper micropillars deform in a single-shear like manner exhibitin… Show more
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