Generalized Rate-Dependent Inelastic Constitutive Equation. Application to Metals.

Rate Dependent Constitutive Equations of Cyclic Softening

Constitutive equations of cyclic strain and stress softening for materials with low internal stress levels are derived from the rate theory. The study shows that over the high stress and low temperature range where the description of plastic flow in cyclic softening can be approximated with activation over a single energy barrier, cyclic strain softening is well related to stress relaxation pro...

Inelastic Constitutive Relations for Solids : an Internal-variable Theory and Its Application to Metal Plasticity

THIS PAPER is a study of the theoretical foundations of constitutive relations at finite strain for a class of solids exhibiting inelasticity as a consequence of specific structural rearrangements, on the microscale, of constituent elements of material. Metals deforming plastically through dislocation motion are of this class and form the primary application of the theory. The development is in...

Temperature-Dependent Dispersion Coefficients of Alkali Metals Using Equation of State

In this study, a temperature-dependent of the dispersion coefficients is calculated from equation state.The Lennard-Jones LJ (12-6-3) effective pair potential function and simple thermodynamic argumentwith the input PVT data of liquid metals are used to calculate the dispersion coefficients. The dispersioncoefficients ( , , ) 3 6 12 C C C are found to be a linear function of 1/T1+α , where T is...

Rate dependent finite strain constitutive model of polyurea

Article history: Received 7 October 2009 Received in final revised form 7 October 2010 Available online 16 October 2010

Constitutive Equation Gap