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 quick method to directly determine the true stress–strain curve over a large strain range is
proposed. The true stress–strain curve includes the post-necking strain, is directly measured …

We demonstrate an optical method to directly determine full-field stress by combining a data-
driven method with digital image correlation (DIC) strain data. In order to obtain the full-field …

In order to predict the nonuniform deformation behavior of engineering materials, both the
evaluation and modeling of the strain field are very important. Recently, accurate and …

We propose a method for obtaining reliable wide strain range equivalent stress–strain
curves from tensile testing by applying 3D digital image correlation. Herein, both the front …

Three-dimensional digital image correlation has been utilized widely in many fields due to
its advantages of non-contact, full-field measurement and simplicity. Based on 3D-DIC …

In order to significantly extend the limit of the measurable strain range to obtain true stress-
strain curves of materials using tensile testing, digital image correlation is used to measure …

A procedure for determining the stress–strain curve including post-necking strain is
proposed. Hourglass type specimens were used for tensile tests, and the stress–strain …

Accurate evaluation of the nonlinear hardening behavior (ie, wide strain range true stress–
strain curve) of developed materials as structural materials is essential because it is directly …

The paper presents an experimental evaluation of deformation of flat samples during
uniaxial tensile testing, including uniform deformation and post-necking phases. The authors …