VISCOPLASTICITY THEORY BASED ON OVERSTRESS. THE PREDICTION OF MONOTONIC AND CYCLIC PROPORTIONAL AND NONPROPORTIONAL LOADING PATHS OF AN ALUMINUM ALLOY.

被引：64

作者：

Yao, D. ^{[1
]}

Krempl, E. ^{[1
]}

机构：

[1] Rensselaer Polytechnic Inst, Dep of, Mechanical Engineering, Aeronautical, Engineering & Mechanics, Troy,, Rensselaer Polytechnic Inst, Dep of Mechanical Engineering, Aeronautical Engineering & Mechanic

来源：

International Journal of Plasticity | 1985年 / 1卷 / 03期

关键词：

ALUMINUM AND ALLOYS - Strain - MATHEMATICAL MODELS;

D O I：

10.1016/0749-6419(85)90007-5

中图分类号：

学科分类号：

摘要：

An isotropic formulation of the viscoplasticity theory for small strain and based on overstress with a differential growth law for the equilibrium stress is introduced. The four material constants and the two material functions of the theory are determined from uniaxial tensile tests involving strain-rate changes at room temperature and performed on a 6061 T6 Aluminum Alloy. Subsequently the theory is used to predict the biaxial behavior under axial-torsion loading.

引用

页码：259 / 273