Uniaxial True Stress-Strain after Necking

Article. AMP Journal of Technology Vol. 5 June, 1996, pp. 37-48.
A weighted-average method for determining uniaxial, true tensile stress vs. strain relation after necking is presented for strip shaped samples. The method requires identification of a lower and an upper bound for the true stress-strain function after necking and expresses the true stress-strain relation as the weighted average of these two bounds. The weight factor is determined iteratively by a finite element model until best agreement between calculated and experimental load extension curves is achieved. The method was applied to various alloys.Introduction
Fundamental Definition
Uniaxial State
Correction Method
Weighted Average Method
Results
Conclusion