Projects per year
Abstract
This paper proposes a new multi-surface plasticity model for the cyclic hardening of unsaturated granular soils crucial for assessing their resilience jointly under repeated loading and changing climatic conditions. The model incorporates a generalised kinematic hardening law and a double logarithmic compressibility law, both of which are essential to accurately simulate soil cyclic behaviour, particularly when considering water retention hysteresis and volume change dependence. A tailored adaptive sub-stepping stress integration algorithm has also been developed, featuring a sub-algorithm for initial hydraulic state and path determination adaptable to various soil water retention curve formulations. The model is validated through experimental results obtained from repeated load triaxial tests and cyclic simple shear tests on unsaturated granular soils under diverse initial void ratios and suctions. The study underscores the importance of soil water retention properties in plastic strain development and offers predictive axial plastic strain contours on the compaction plane. These findings provide essential insights for soil performance optimisation and practical guidelines for effective soil compaction in field applications.
Original language | English |
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Article number | 106500 |
Number of pages | 22 |
Journal | Computers and Geotechnics |
Volume | 173 |
DOIs | |
Publication status | Published - Sept 2024 |
Keywords
- Cyclic hardening
- Multi-surface plasticity
- Plastic strain development
- Shakedown and ratcheting
- Soil compaction
- Unsaturated granular soils
Projects
- 1 Active
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SPARC: ARC Research Hub for Smart Next Generation Transport Pavements
Kodikara, J., Walker, J., Sanjayan, J., Vu, L. H., Setunge, S., Wallace, M., Chiu, W., Nikraz, H., Bouazza, A., Shahin, M., Gallage, C. P. K., Kulkarni, A., Bui, H. H., Coxon, S., Rajeev, P., Lu, Y., Giustozzi, F., White, G. W., Fang, Y., Robert, D., Zhou, A., Molotnikov, A., Xue, J., Shackleton, M. C., Papacostas, A., Tan, J., Kuen, T., Ramanujam, J., Zhong, J., Shahkolahi, A., Gibbs, D. T., Gu, H., Hoogendoorn, S. P., Maina, J., Underwood, B., Singh, D., Chabot, A., Henning, T., Sheng, D., Airey, G., Yeaman, J., Palma, R. S., Guppy, R., Muller, W., Thirugnanasundralingam, K., Dack, S., Chow, R., Arashpour, M., D'Angelo, A., Albrecht, D., Rong, J., Xu, B., Barker, D., Sounthararajah, A., Fletcher, W. & Marques, P.
Australian Research Council (ARC), Transurban Limited (trading as Transurban Linkt), Monash University – Internal University Contribution, Monash University – Internal Faculty Contribution, EIC Activities Pty Ltd, Monash University – Internal Department Contribution, TGVK Pty Ltd, Earth Radar Pty Ltd, EON Reality, Jaybro Group Pty Ltd (trading as Polyfabrics Australasia Pty Ltd), Monash City Council (trading as Monash Gallery of Art), University of Technology (UTS) Sydney
1/07/19 → 30/06/25
Project: Research