2022
DOI: 10.1029/2022jb024983
|View full text |Cite
|
Sign up to set email alerts
|

Micromechanics and Strain Localization in Sand in the Ductile Regime

Abstract: Critical processes including seismic faulting, reservoir compartmentalization, and borehole failure involve high‐pressure mechanical behavior and strain localization of sedimentary rocks such as sandstone. Sand is often used as a model material to study the mechanical behavior of poorly lithified sandstone. Recent studies exploring the multi‐scale mechanics of sand have characterized the brittle, low‐pressure regime of behavior; however, limited work has provided insights into the ductile, high‐pressure regime… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

4
13
0

Year Published

2023
2023
2024
2024

Publication Types

Select...
4

Relationship

1
3

Authors

Journals

citations
Cited by 4 publications
(17 citation statements)
references
References 101 publications
4
13
0
Order By: Relevance
“…The use of this approach, the only known approach through which grain stresses can be measured experimentally, necessitates using of higher confining pressures and smaller samples than are typically used in experimental studies of dilatant shear bands performed in the soil mechanics communities. Our triaxial tests therefore feature compactive, rather than dilative, shear bands, which emerge naturally in many geomaterials deformed under relatively high confining pressures ( 2 , 12 , 13 ). Experimental constraints also required the use of less than 2,000 particles per sample, suggesting the possibility of finite size and boundary effects.…”
mentioning
confidence: 82%
See 4 more Smart Citations
“…The use of this approach, the only known approach through which grain stresses can be measured experimentally, necessitates using of higher confining pressures and smaller samples than are typically used in experimental studies of dilatant shear bands performed in the soil mechanics communities. Our triaxial tests therefore feature compactive, rather than dilative, shear bands, which emerge naturally in many geomaterials deformed under relatively high confining pressures ( 2 , 12 , 13 ). Experimental constraints also required the use of less than 2,000 particles per sample, suggesting the possibility of finite size and boundary effects.…”
mentioning
confidence: 82%
“…These tests have also revealed the ubiquitous emergence of shear bands, or regions of localized shear strain which become fully developed when a material approaches a macroscopic critical state. The emergence of shear bands may be accompanied by dilation at low pressures, compaction at high pressures, or may feature a more complex volumetric evolution depending on a soil’s initial density, breakage susceptibility, and the confining pressure applied to the sample ( 2 , 12 15 ).…”
mentioning
confidence: 99%
See 3 more Smart Citations