Effective Temperature Dynamics in an Athermal Amorphous Plasticity Theory

Abstract

Recent developments in the theory of amorphous plasticity point to the central role played by the concept of an effective disorder temperature $T_{eff}$. An athermal dynamics for $T_{eff}$ are proposed in the framework of a deformation theory and discussed in light of the recent steady state simulations by Haxton and Liu [Phys. Rev. Lett. {\bf 99}, 195701 (2007)]. The structure of the resulting theory, its parameters and transient dynamics are discussed and compared to available data.

10 pages, 4 figures; new experimental ref., additional discussions

References in corpus (15)

• Dynamics of Viscoplastic Deformation in Amorphous Solids
• Two-time scales, two-temperature scenario for nonlinear rheology
• Effective Temperatures of a Driven System Near Jamming
• Strain localization in a shear transformation zone model for amorphous solids
• Evaluation of the "disorder temperature" and "free volume" formalisms via simulations of shear banding in amorphous solids
• Dynamics of Shear-Transformation Zones in Amorphous Plasticity: Formulation in Terms of an Effective Disorder Temperature
• Rearrangements and Dilatancy for Sheared Dense Materials
• Thermal Effects in the Shear-Transformation-Zone Theory of Amorphous Plasticity: Comparisons to Metallic Glass Data
• Activated dynamics and effective temperature in a steady state sheared glass
• Athermal Shear-Transformation-Zone Theory of Amorphous Plastic Deformation I: Basic Principles
• Experimental measurement of an effective temperature for jammed granular materials
• Steady-state, effective-temperature dynamics in a glassy material
• Athermal Shear-Transformation-Zone Theory of Amorphous Plastic Deformation II: Analysis of Simulated Amorphous Silicon
• Driven activation versus thermal activation
• Energy distribution and effective temperatures in a driven dissipative model

Cited by in corpus (10)

• Theoretical perspective on the glass transition and amorphous materials
• Nonequilibrium Thermodynamics of Amorphous Materials II: Effective-Temperature Theory
• Nonequilibrium Thermodynamics of Amorphous Materials III: Shear-Transformation-Zone Plasticity
• Nonequilibrium Thermodynamics of Amorphous Materials I: Internal Degrees of Freedom and Volume Deformation
• Two-temperature continuum thermomechanics of deforming amorphous solids
• A Small-gap Effective-Temperature Model of Transient Shear Band Formation During Flow
• The Stability of an Expanding Circular Cavity and the Failure of Amorphous Solids
• Parallel three-dimensional simulations of quasi-static elastoplastic solids
• Fronts Propagation at the Onset of Plastic Yielding
• Coordinate transformation methodology for simulating quasi-static elastoplastic solids