ORIGINAL RESEARCH article
Front. Plant Sci.
Sec. Plant Biophysics and Modeling
Volume 16 - 2025 | doi: 10.3389/fpls.2025.1652657
Elasto-Plastic Deformation Mechanism of Mugwort Petiole: A Bio-mechanical Study Using Modified Johnson-Cook Constitutive Model
Provisionally accepted
- Hubei University of Technology, Wuhan, China
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The elastic-plastic deformation mechanism of mugwort petiole was investigated by quasi-static tensile experiments and dynamic tensile experiments with mugwort as the research object. A constitutive model of mugwort petiole was established and validated. The quasi-static tensile experimental results showed there was obvious strain hardening during the fracture process of mugwort petiole; the dynamic tensile experimental results showed a significant strain rate strengthening effect, with the yield strength and ultimate tensile strength increased with strain rate, and both showed uniform deformation behavior. The experimental results showed that the Pearson correlation coefficients between predicted data and experimental data are all greater than 0.95, the goodness-of-fit R2 is greater than 0.91, and the mean square error, root mean square error, mean absolute error, and mean absolute percentage error are all less than 1. The constructed constitutive model of mugwort petiole can more accurately and efficiently characterize the deformation behavior under loading of mugwort petiole, and the study can provide a more accurate and reliable theoretical basis for numerical simulation studies on the tensile properties of mugwort petiole.
Keywords: mugwort, Petiole, Biomechanics, Biomechanical, constitutive modeling, Strain hardening, Strain rate effect
Received: 24 Jun 2025; Accepted: 02 Sep 2025.
Copyright: © 2025 Wang, Hu, Lu, Pan and Daode. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Xinyu Hu, 19991012@hbut.edu.cn
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