A Constitutive Model for the Deformation Induced Anisotropic Flow of Metals.
Abstract
A mathematical framework is established for the equations governing inelastic deformation under multidimensional stress state and the associated evolution equations of the internal state variables. The formulation is based on a generalization of the Prandtl-Reuss flow law. For the evolution equations it is assumed that part of the rate of change in the inelastic state variables is isotropic and the remaining part varies according to the sign and orientation of the current rate of deformation vector. This leads to a minimum of 12 components of the internal state tensor to represent the inelastic plastic flow. In this manner, both initial and load history induced plastic anisotropy can be modeled. A specific set of equations for anisotropic plastic flow is developed consistent with the inelastic state variables. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1979
- Accession Number
- ADA069954
Entities
People
- D. C. Stouffer
- S. R. Bodner