Evaluation of Stress Distribution in the Symmetrical Neck of Flat Tensile Bars

Abstract

Abstract The local strains and the strain distribution in the necks of two flat tensile specimens have been measured. A strain-hardening function for the material was obtained from the results of tension tests on round bars. This strain-hardening function and the measured strains are used to determine the stress distribution in the neck. Good agreement between the calculated and the measured fracture load was obtained.