Mechanical Properties of Corn Stalks and Behavior of Particles During Compression Process Based on Discrete Element Method

Junming Hou (), Zheng Li, Yue Ma, Yandong Xu, Hao Ding, Chenglong Li, Chenghao Li, Qiang Tang and Minghui Liu
Additional contact information
Junming Hou: College of Engineering, Shenyang Agricultural University, 120 Dongling Road, Shenhe District, Shenyang 110866, China
Zheng Li: College of Engineering, Shenyang Agricultural University, 120 Dongling Road, Shenhe District, Shenyang 110866, China
Yue Ma: College of Engineering, Shenyang Agricultural University, 120 Dongling Road, Shenhe District, Shenyang 110866, China
Yandong Xu: College of Engineering, Shenyang Agricultural University, 120 Dongling Road, Shenhe District, Shenyang 110866, China
Hao Ding: College of Engineering, Shenyang Agricultural University, 120 Dongling Road, Shenhe District, Shenyang 110866, China
Chenglong Li: College of Engineering, Shenyang Agricultural University, 120 Dongling Road, Shenhe District, Shenyang 110866, China
Chenghao Li: College of Engineering, Shenyang Agricultural University, 120 Dongling Road, Shenhe District, Shenyang 110866, China
Qiang Tang: College of Engineering, Shenyang Agricultural University, 120 Dongling Road, Shenhe District, Shenyang 110866, China
Minghui Liu: College of Engineering, Shenyang Agricultural University, 120 Dongling Road, Shenhe District, Shenyang 110866, China

Agriculture, 2025, vol. 15, issue 17, 1-28

Abstract: The mechanical properties of corn stalks play a crucial role in the design of packing and harvesting equipment. Complete and damaged stalks were used to simulate stalk mixtures during the collection process. This study measured the mechanical characteristics of complete stalks and damaged stalks through experiments. A discrete element method (DEM) model was established which incorporated both the skin and core tissues of the samples. The compression behavior of the stalks was analyzed with the EDEM 2022 software. The results indicate that the complete stalks exhibited both a plastic and second plastic stage, while the damaged stalks fractured immediately upon reaching peak stress. The models of the complete and damaged stalks were validated through a radial compression test. An analysis of the relative errors and particle velocities enabled the quantification of experimental accuracy, ensured the reliability of the experimental data, and revealed the dynamic behavior mechanism of the materials under mechanical loading. The simulation results show that the maximum compression force is 254.11 N and 33.1 N, with a 1.5% and 12.3% relative error compared to the experiment. The particle velocity in the core part is the largest, which is 9.83 × 10 4 mm/s and 3.51 × 10 5 mm/s. This study can provide a theoretical reference for researching the mechanical behavior and compressive failure of stalks.

Keywords: corn stalk; DEM; mechanical property; compression test; behavior (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2077-0472/15/17/1824/pdf (application/pdf)
https://www.mdpi.com/2077-0472/15/17/1824/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jagris:v:15:y:2025:i:17:p:1824-:d:1734117

Access Statistics for this article

Agriculture is currently edited by Ms. Leda Xuan

More articles in Agriculture from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().