Rheological behavior limits
Rheological behaviour of multiphase metallic materials
Article REF: M3010 V2
Rheological behavior limits
Rheological behaviour of multiphase metallic materials

Author : Frank MONTHEILLET

Publication date: June 10, 2012, Review date: March 6, 2017 | Lire en français

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2. Rheological behavior limits

2.1 Extremity theorems in elasticity and viscoplasticity

In elasticity, it is customary to introduce the strain potential U(ε) and the stress potential V(σ) :

U(ε)=i,j0εijσijdu   et   V(σ)=
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