Kovacs, Zoltan and Aninger, Andras and Berezvai, Szabolcs (2025) Improved hyperelastic material characterization using measurement data pre-processing. JOURNAL OF THEORETICAL AND APPLIED MECHANICS, 63 (3). pp. 679-690. ISSN 1429-2955
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Abstract
Mechanical characterization of elastomers is a long-studied but still challenging area. Finite element solvers offer a great variety of hyperelastic models; however, no straightforward selection process is provided. This paper presents a methodology for high-fidelity hyperelastic parameter fitting tailored for elastomers. One of its main components is a pre-processing module, which helps select the most suitable model based on all information extractable from the measured stress-strain curves. In this contribution, the concept of the pre-processing module is presented, while its efficiency is demonstrated through benchmark fitting processes using the Treloar dataset and an experimental dataset of an nitril butadiene rubber (NBR) specimen.
| Item Type: | Article |
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| Additional Information: | Funding Agency and Grant Number: National Research, Development and Innovation Office [2020-1.1.2-Piaci-KFI-2021-00314]; Hungarian National Research, Development and Innovation Office (NKFIH NKKP STARTING) [149473]; Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences Funding text: This research activity has been completed with the grant from the National Research, Development and Innovation Office. The project title is as follows: Precision Characterization of Nonlinear Mechanical Behaviour of Reinforced and Unreinforced Polymeric Materials for Numerical Simulations (project number: 2020-1.1.2-Piaci-KFI-2021-00314) . Szabolcs Berezvai has been supported by the Hungarian National Research, Development and Innovation Office (NKFIH NKKP STARTING 149473) and the Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences. |
| Uncontrolled Keywords: | hyperelasticity; elastomers; parameter-optimization |
| Subjects: | T Technology / alkalmazott, műszaki tudományok > TJ Mechanical engineering and machinery / gépészmérnöki tudományok |
| SWORD Depositor: | MTMT SWORD |
| Depositing User: | MTMT SWORD |
| Date Deposited: | 22 Sep 2025 06:26 |
| Last Modified: | 22 Sep 2025 06:26 |
| URI: | https://real.mtak.hu/id/eprint/224753 |
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