The exact stress–strain curve can be directly identified from uniaxial tension experiments up
to the point of onset of diffuse necking. To gain insight into the post-necking hardening …

Triaxial state of stress is usually generated in the necked zone because of neck geometry,
and as a consequence proper correction of true tensile stress–strain curve after necking is …

A local correction factor method is proposed for identifying the post-necking strain hardening
behavior of a thin flat sheet metal under uniaxial tension testing. Based on local surface …

For metallic materials, standard uniaxial tensile tests with round bar specimens or flat
specimens only provide accurate equivalent stress–strain curve before diffuse necking …

Background Measuring true stress–strain curve over a large-strain-range is essential to
understand mechanical behavior and simulate non-linear plastic deformation. The digital …

A procedure is presented to identify the post-necking work hardening behaviour of thick HSS
steels using a standard uniaxial tensile machine. The pre-necking strain hardening …

This paper presents a combined experimental and simulation approach to identify post-
necking hardening behavior of ductile sheet metal. The method is based on matching a …

The true stress–strain curve has a significant role in the analysis of deformation in theoretical
plasticity and numerical simulations. Because of the triaxial state of stress in the neck zone …

The true stress-strain curve of a material should be determined for plastic property input to
numerical analysis. This study proposes a simple methodology for determining the true …

The hardening behaviour of metals is generally described in terms of a stress‐strain curve
derived from experiments. In this paper, a linear method to identify the stress‐strain curve …