Rheological aspects in plasticity
As it is well known, the equations describing the “classical plastic” model are essentially time independent. This way to describe “plasticity” seems to go back to Barré de Saint-Venant in 1870. In the present paper one discusses the way in which with a rate-type constitutive equation one can describe various phenomena which have been observed to occur during plastic deformation, and which cannot be described with the classical model.
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