A state-dependent dilatancy constitutive model and parametric analysis for dense sand–structure interfaces
Xiaolin Li, Chunlin Wang, Jugang Luo, Gaofeng Hou, Daguo Wu, Ge Zhang · 2026
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Description
Xiaolin Li and co-authors built a math model for how dense sand shears against a solid surface, in a 2026 paper. Such interfaces matter under foundations and piles. Dense sand tries to swell as it shears, but a stiff boundary blocks the swell, so pressure climbs and strength later softens past its peak. Their model ties these moves to the sand's density state inside critical-state soil mechanics.
A step-by-step computing scheme runs the model, checked against published shear tests. It reproduced the stress rise, the pressure build, and the post-peak fall. Tuning trials showed which knobs matter most: the density terms set the early swell, and one coefficient rules peak strength.
Catalog record
| CREATOR | Xiaolin Li, Chunlin Wang, Jugang Luo, Gaofeng Hou, Daguo Wu, Ge Zhang |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 60 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |