Abstract
Simulation of plowing and cutting processes in soils is challenging and time-consuming due to large deformations and contact interactions. Recent studies on sand have suggested that a simplified, efficient approach based on incremental plastic analysis can capture the essential physics and features of the problem. The present study refines this technique by enhancing the kinematics and implementing a more sophisticated material law. The effects of hardening and softening, as well as dilatancy and compaction, are introduced. With the modified model, it is observed in the case of hardening (compaction) that the occurrence of multiple successive shear bands at variable locations gives the appearance of continuous shearing in the final pattern of deformation. This is markedly different from the previously predicted response in the case of softening (dilatancy), where shear bands appear at distinct locations and transition from one discrete location to the next. The computed results are compared with preliminary experimental data gathered in the Soil-Structure and Soil-Machine Interaction Laboratory (SSI-SMI Laboratory) at Northwestern University.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 11-19 |
| Number of pages | 9 |
| Journal | Geotechnical Special Publication |
| Volume | 2019-March |
| Issue number | GSP 310 |
| DOIs | |
| State | Published - Jan 1 2019 |
| Event | 8th International Conference on Case Histories in Geotechnical Engineering: Geotechnical Materials, Modeling, and Testing, Geo-Congress 2019 - Philadelphia, United States Duration: Mar 24 2019 → Mar 27 2019 |
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ASJC Scopus subject areas
- Civil and Structural Engineering
- Architecture
- Building and Construction
- Geotechnical Engineering and Engineering Geology
Cite this
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Simulation of the Cutting Process in Softening and Hardening Soils. / Jin, Zhefei; Hambleton, James Paul.
In: Geotechnical Special Publication, Vol. 2019-March, No. GSP 310, 01.01.2019, p. 11-19.Research output: Contribution to journal › Conference article
TY - JOUR
T1 - Simulation of the Cutting Process in Softening and Hardening Soils
AU - Jin, Zhefei
AU - Hambleton, James Paul
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Simulation of plowing and cutting processes in soils is challenging and time-consuming due to large deformations and contact interactions. Recent studies on sand have suggested that a simplified, efficient approach based on incremental plastic analysis can capture the essential physics and features of the problem. The present study refines this technique by enhancing the kinematics and implementing a more sophisticated material law. The effects of hardening and softening, as well as dilatancy and compaction, are introduced. With the modified model, it is observed in the case of hardening (compaction) that the occurrence of multiple successive shear bands at variable locations gives the appearance of continuous shearing in the final pattern of deformation. This is markedly different from the previously predicted response in the case of softening (dilatancy), where shear bands appear at distinct locations and transition from one discrete location to the next. The computed results are compared with preliminary experimental data gathered in the Soil-Structure and Soil-Machine Interaction Laboratory (SSI-SMI Laboratory) at Northwestern University.
AB - Simulation of plowing and cutting processes in soils is challenging and time-consuming due to large deformations and contact interactions. Recent studies on sand have suggested that a simplified, efficient approach based on incremental plastic analysis can capture the essential physics and features of the problem. The present study refines this technique by enhancing the kinematics and implementing a more sophisticated material law. The effects of hardening and softening, as well as dilatancy and compaction, are introduced. With the modified model, it is observed in the case of hardening (compaction) that the occurrence of multiple successive shear bands at variable locations gives the appearance of continuous shearing in the final pattern of deformation. This is markedly different from the previously predicted response in the case of softening (dilatancy), where shear bands appear at distinct locations and transition from one discrete location to the next. The computed results are compared with preliminary experimental data gathered in the Soil-Structure and Soil-Machine Interaction Laboratory (SSI-SMI Laboratory) at Northwestern University.
UR - http://www.scopus.com/inward/record.url?scp=85063467047&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85063467047&partnerID=8YFLogxK
U2 - 10.1061/9780784482124.002
DO - 10.1061/9780784482124.002
M3 - Conference article
VL - 2019-March
SP - 11
EP - 19
JO - Geotechnical Special Publication
JF - Geotechnical Special Publication
SN - 0895-0563
IS - GSP 310
ER -