A particle-scale analysis of unload-reload hysteresis for normally consolidated kaolin
Source abstract
Abstract
The mechanical behaviour of sands and clays subject to “normal” (plastic) compression are very similar, albeit at different stress levels, despite the differences in inter-particle interactions (Hertzian normal contact forces or similar for sand) and electro-chemical forces for clays. However the hysteretic behaviour of clay is very different to sand with clays exhibiting “springy” hysteresis loops and ratchetting volumetric compaction. This paper aims to show that whereas the “plastic” compression arises from degradation of macro particles, the “quasi-elastic” unload-reload behaviour is consistent with an increase in the number of platelet edge contacts as clay “stacks” rearrange and compact.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Soil and Unsaturated Flow · Landslides and related hazards · Geotechnical Engineering and Soil Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (27)
Show source-provided references
1. Forces and ionic transport between mica surfaces: implications for pressure solution10.1016/S0016-7037(02)01270-X ↗
2. Multi-scale modelling of kaolinite triaxial behaviour10.1680/jgele.18.00194 ↗
3. Coarse-grained molecular dynamics simulations of clay compression10.1016/j.compgeo.2021.104333 ↗
4. On the compressibility and shear strength of natural clays10.1680/geot.1990.40.3.329 ↗
5. An insight into the unloading/reloading loops on the compression curve of natural stiff clays10.1016/j.clay.2013.08.003 ↗
6. Micro mechanics of drained and undrained shearing of compacted and overconsolidated crushable sand10.1680/jgeot.16.P.318 ↗
7. Discrete element modelling of normal compression of clay10.1016/j.jmps.2022.104847 ↗
8. Some important aspects of modelling clay platelet interactions using DEM10.1016/j.powtec.2021.117056 ↗
9. Particle-scale simulations of the compression and shearing of kaolin clay
10. Simulating multifaceted interactions between kaolinite platelets10.1016/j.powtec.2022.118062 ↗
11. Surface force measurements at the basal planes of ordered kaolinite particles10.1016/j.jcis.2010.01.012 ↗
12. Particle interactions in kaolinite suspensions and corresponding aggregate structures10.1016/j.jcis.2011.03.043 ↗
13. Measurements of and relation between the adhesion and friction of two surfaces separated by molecularly thin liquid films10.1115/1.3261994 ↗
14. Fundamental experimental studies in tribology: the transition from “interfacial” friction of undamaged molecularly smooth surfaces to “normal” friction with wear10.1016/0043-1648(90)90072-I ↗
15. Israelachvili · 2011
16. Frictional characteristics of single and polycrystalline muscovite and influence of fluid chemistry10.1002/2015JB012286 ↗
17. Probing the surface charge on the basal planes of Kaolinite particles with high-resolution atomic force microscopy10.1021/acs.langmuir.7b03153 ↗
18. Influence of ionic strength on the surface charge and interaction of layered silicate particles10.1016/j.jcis.2014.06.028 ↗
19. Surface force measurements at kaolinite edge surfaces using atomic force microscopy10.1016/j.jcis.2013.12.053 ↗
20. Mitchell · 2005
21. Exploring the micromechanics of non-active clays by way of virtual DEM experiments10.1680/jgeot.18.P.060 ↗
22. An experimental investigation into the micromechanics of non-active clays
23. Coarse-grained molecular dynamics approach to simulating clay behavior10.1061/(ASCE)GT.1943-5606.0001394 ↗
24. Measurement of interaction forces between silica and α-alumina by atomic force microscopy10.1006/jcis.1996.0656 ↗
25. Interactions of silica surfaces10.1006/jcis.1994.1242 ↗
26. Structure characteristics and mechanical properties of kaolinite soils. I. Surface charges and structural characterizations10.1139/t06-026 ↗
27. Wood · 1990