Unified Cyclic Viscoplastic Constitutive Equations: Development, Capabilities, and Thermodynamic Framework

摘要: This chapter focuses on the metallic materials which are developed with objective of inelastic analysis structural components. They based concepts continuum mechanics, where a particular representative volume element material can be considered as submitted to macroscopically uniform stress, neglecting microstress microstrain inhomogeneities at microscale. The application domains limited quasistatic deformation (strain rate between 10 -10 and -1 ), especially under cyclic loading conditions. constitutive equations written in their small strain form. Also, high-temperature conditions will considered, well varying temperatures. Unified viscoplastic means nonseparation plastic (rate-independent) creep (rate-dependent) parts strain. Moreover, general framework consistent both classical plasticity (elastic domain, yield surface, loading/unloading condition) thermoviscoplasticity without an elastic domain. Then rate-independent obtained consistently limit case scheme.