An enhanced concept of rheological models to represent nonlinear thermoviscoplasticity and its energy storage behavior, part 2: spatial generalization for small strains

Autor: C. Bröcker, Anton Matzenmiller
Rok vydání: 2014
Předmět:
Zdroj: Continuum Mechanics and Thermodynamics. 27:325-347
ISSN: 1432-0959
0935-1175
DOI: 10.1007/s00161-014-0350-0
Popis: The paper provides the spatial formulation of the enhanced concept of rheological models (Brocker and Matzenmiller in Cont Mech Thermodyn 25(6):749–778, 2013) for small deformations and the graphical representation of the rheological network for three-dimensionalmaterial behavior. The rheological components are redefined as tensor-valued elements, and afterward, they are assembled into a network of thermoviscoplasticity with volumetric–deviatoric split. The related constitutive equations are derived analogously as in the uniaxial model in Brocker and Matzenmiller (Cont Mech Thermodyn 25(6):749–778, 2013), providing the von-Mises yield function of metal plasticity and the associated flow rule in a natural way.
Databáze: OpenAIRE