A Finite Element Model of Soil-Stress Probe Interaction under a Moving Rigid Wheel
Machinery traffic is associated with the application of stress onto the soil surface and is the main reason for agricultural soil compaction. Currently, probes are used for studying the stress propagation in soil and measuring soil stress. However, because of the physical presence of a probe, the me...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Ferdowsi University of Mashhad
2024-03-01
|
| Series: | Journal of Agricultural Machinery |
| Subjects: | |
| Online Access: | https://jame.um.ac.ir/article_44380_464460ca2817c2ff05a516a2757ef964.pdf |
| _version_ | 1797266419415515136 |
|---|---|
| author | M. Naderi-Boldaji H. Azimi-Nejadian M. Bahrami |
| author_facet | M. Naderi-Boldaji H. Azimi-Nejadian M. Bahrami |
| author_sort | M. Naderi-Boldaji |
| collection | DOAJ |
| description | Machinery traffic is associated with the application of stress onto the soil surface and is the main reason for agricultural soil compaction. Currently, probes are used for studying the stress propagation in soil and measuring soil stress. However, because of the physical presence of a probe, the measured stress may differ from the actual stress, i.e. the stress induced in the soil under machinery traffic in the absence of a probe. Hence, we need to model the soil-stress probe interaction to study the difference in stress caused by the probe under varying loading geometries, loading time, depth, and soil properties to find correction factors for probe-measured stress. This study aims to simulate the soil-stress probe interaction under a moving rigid wheel using finite element method (FEM) to investigate the agreement between the simulated with-probe stress and the experimental measurements and to compare the resulting ratio of with/without probe stress with previous studies. The soil was modeled as an elastic-perfectly plastic material whose properties were calibrated with the simulation of cone penetration and wheel sinkage into the soil. The results showed an average 28% overestimation of FEM-simulated probe stress as compared to the experimental stress measured under the wheel loadings of 600 and 1,200 N. The average simulated ratio of with/without probe stress was found to be 1.22 for the two tests which is significantly smaller than that of plate sinkage loading (1.9). The simulation of wheel speed on soil stress showed a minor increase in stress. The stress over-estimation ratio (i.e. the ratio of with/without probe stress) noticeably increased with depth but increased slightly with speed for depths below 0.2 m. |
| first_indexed | 2024-04-25T01:00:23Z |
| format | Article |
| id | doaj.art-499fb5c0e7024f7e9d4c8b7882b5159e |
| institution | Directory Open Access Journal |
| issn | 2228-6829 2423-3943 |
| language | English |
| last_indexed | 2024-04-25T01:00:23Z |
| publishDate | 2024-03-01 |
| publisher | Ferdowsi University of Mashhad |
| record_format | Article |
| series | Journal of Agricultural Machinery |
| spelling | doaj.art-499fb5c0e7024f7e9d4c8b7882b5159e2024-03-11T05:20:44ZengFerdowsi University of MashhadJournal of Agricultural Machinery2228-68292423-39432024-03-01141496710.22067/jam.2023.84158.118544380A Finite Element Model of Soil-Stress Probe Interaction under a Moving Rigid WheelM. Naderi-Boldaji0H. Azimi-Nejadian1M. Bahrami2Department of Mechanical Engineering of Biosystems, Faculty of Agriculture, Shahrekord University, Shahrekord, IranDepartment of Mechanical Engineering of Biosystems, Faculty of Agriculture, Jahrom University, Jahrom, IranDepartment of Mechanical Engineering of Biosystems, Faculty of Agriculture, Shahrekord University, Shahrekord, IranMachinery traffic is associated with the application of stress onto the soil surface and is the main reason for agricultural soil compaction. Currently, probes are used for studying the stress propagation in soil and measuring soil stress. However, because of the physical presence of a probe, the measured stress may differ from the actual stress, i.e. the stress induced in the soil under machinery traffic in the absence of a probe. Hence, we need to model the soil-stress probe interaction to study the difference in stress caused by the probe under varying loading geometries, loading time, depth, and soil properties to find correction factors for probe-measured stress. This study aims to simulate the soil-stress probe interaction under a moving rigid wheel using finite element method (FEM) to investigate the agreement between the simulated with-probe stress and the experimental measurements and to compare the resulting ratio of with/without probe stress with previous studies. The soil was modeled as an elastic-perfectly plastic material whose properties were calibrated with the simulation of cone penetration and wheel sinkage into the soil. The results showed an average 28% overestimation of FEM-simulated probe stress as compared to the experimental stress measured under the wheel loadings of 600 and 1,200 N. The average simulated ratio of with/without probe stress was found to be 1.22 for the two tests which is significantly smaller than that of plate sinkage loading (1.9). The simulation of wheel speed on soil stress showed a minor increase in stress. The stress over-estimation ratio (i.e. the ratio of with/without probe stress) noticeably increased with depth but increased slightly with speed for depths below 0.2 m.https://jame.um.ac.ir/article_44380_464460ca2817c2ff05a516a2757ef964.pdffem simulationmachinery trafficsoil binsoil stressstress probe |
| spellingShingle | M. Naderi-Boldaji H. Azimi-Nejadian M. Bahrami A Finite Element Model of Soil-Stress Probe Interaction under a Moving Rigid Wheel Journal of Agricultural Machinery fem simulation machinery traffic soil bin soil stress stress probe |
| title | A Finite Element Model of Soil-Stress Probe Interaction under a Moving Rigid Wheel |
| title_full | A Finite Element Model of Soil-Stress Probe Interaction under a Moving Rigid Wheel |
| title_fullStr | A Finite Element Model of Soil-Stress Probe Interaction under a Moving Rigid Wheel |
| title_full_unstemmed | A Finite Element Model of Soil-Stress Probe Interaction under a Moving Rigid Wheel |
| title_short | A Finite Element Model of Soil-Stress Probe Interaction under a Moving Rigid Wheel |
| title_sort | finite element model of soil stress probe interaction under a moving rigid wheel |
| topic | fem simulation machinery traffic soil bin soil stress stress probe |
| url | https://jame.um.ac.ir/article_44380_464460ca2817c2ff05a516a2757ef964.pdf |
| work_keys_str_mv | AT mnaderiboldaji afiniteelementmodelofsoilstressprobeinteractionunderamovingrigidwheel AT haziminejadian afiniteelementmodelofsoilstressprobeinteractionunderamovingrigidwheel AT mbahrami afiniteelementmodelofsoilstressprobeinteractionunderamovingrigidwheel AT mnaderiboldaji finiteelementmodelofsoilstressprobeinteractionunderamovingrigidwheel AT haziminejadian finiteelementmodelofsoilstressprobeinteractionunderamovingrigidwheel AT mbahrami finiteelementmodelofsoilstressprobeinteractionunderamovingrigidwheel |