[請益] 關於Material hardening的問題
An isotropic strain hardening material in cylindrical form is stressed in
uniaxial tension so that its cross-sectional area reduces from A0 to A1.
A strip of the same material is also compressed in plane strain from thickness
h0 to h1. The reduction r=1-A1/A0=1-h1/h0 is the smae in both cases. Which, if
either, is likely to be hardened more by the reduction, be cylinder or be
strip? Why?
完全不知從何下手?
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