| Issue |
MATEC Web Conf.
Volume 346, 2021
International Conference on Modern Trends in Manufacturing Technologies and Equipment (ICMTMTE 2021)
|
|
|---|---|---|
| Article Number | 02042 | |
| Number of page(s) | 8 | |
| Section | Materials Science | |
| DOI | https://doi.org/10.1051/matecconf/202134602042 | |
| Published online | 26 October 2021 | |
The development of the method for identifying the hardening curves of materials based on the results of torsion tests of notched specimens
1 Ural Federal University, Metal Forming Department, 620002 Yekaterinburg 19 Mira Str., Russia
2 Karaganda Industrial University, Metal Forming Department, 101400 Temirtau 30 Republic Ave., Kazakhstan
* Corresponding author: m.v.erpalov@urfu.ru
The article is devoted to studying the rheological properties of metals and alloys in a cold state. The method is proposed to identify the hardening curve of a material based on torsion tests of round specimens with a notch. Determining the hardening curve is based on measuring the coordinates of points on the surface of the specimen after testing and determining the corresponding value of the torque. Based on these values the coefficients in an equation for the stress-strain dependence can be determined by minimizing the derived functional. The paper proposes the algorithm for the numerical implementation of the new identification method. The results of the computer simulation confirmed its effectiveness.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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