PRESENT is an ultra-lightweight block cipher designed by Bogdanov et al., and has been widely studied since its proposal. It supports 80-bit and 128-bit keys, which are referred to as PRESENT-80 and ...
the strain-hardening is isotropic and linear. First, the flow law at a "corner" of the yield function is investigated in detail. Next, it is shown that the flow law at all points can be piecewise ...
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