Changli Zhang, Michel Bellet
The rheological behavior of an ultra high strength (UHS) steel is investigated by Gleeble tensile tests at low deformation rates and high temperature, from 1200 °C up to solidus temperature. Results show that large thermal gradients exist in specimens, resulting in heterogeneous deformation, which makes difficult the identification of constitutive parameters from the directly deduced nominal stress-strain curves. The advantages of an inverse identification method - associating a direct finite element model of Gleeble tests and an optimization module - are demonstrated in such conditions. The constitutive parameters identified by this technique have been successfully applied to additional tests, more complex in nature than those used for the identification of parameters. However, such tests combining successive loading and relaxation stages have revealed some limitations of the considered constitutive model.
@article{97e1be05-32b4-4b9d-843a-f55aa24193b6,
title={Inverse finite element modelling and ide},
author={Changli Zhang and Michel Bellet},
year={2026},
language={en}
}TY - JOUR TI - Inverse finite element modelling and ide AU - Changli Zhang AU - Michel Bellet PY - 2026 LA - en ER -
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