1. Date of download: 10/29/2017
Copyright © ASME. All rights reserved.
From: 2011 Drucker Medal Paper: Localized Compaction in Porous Sandstones
J. Appl. Mech. 2013;80(6): doi: /
Figure Legend:
Schematic illustration of localized band formation in the axisymmetric compression test

2. Date of download: 10/29/2017
Copyright © ASME. All rights reserved.
From: 2011 Drucker Medal Paper: Localized Compaction in Porous Sandstones
J. Appl. Mech. 2013;80(6): doi: /
Figure Legend:
Schematic illustration of a yield surface for a high-porosity sandstone

3. Date of download: 10/29/2017
Copyright © ASME. All rights reserved.
From: 2011 Drucker Medal Paper: Localized Compaction in Porous Sandstones
J. Appl. Mech. 2013;80(6): doi: /
Figure Legend:
Predicted variation of the angle between the normal to the plane of localization and the most compressive principal stress against the average of β and μ for axisymmetric compression and Poisson's ratio ν = 0.2

4. Date of download: 10/29/2017
Copyright © ASME. All rights reserved.
From: 2011 Drucker Medal Paper: Localized Compaction in Porous Sandstones
J. Appl. Mech. 2013;80(6): doi: /
Figure Legend:
Dilatancy angle Ψ defined by Ref. [20] against the difference β − μ. The shaded rectangle corresponds to compactive localization (Ψ < 0) and the range of fault angles, 37–53, reported by Ref. [21] for compacting shear bands in Valley of Fire State Park, Nevada. Modified from Fig. 5.16a of Ref. [16].

5. Date of download: 10/29/2017
Copyright © ASME. All rights reserved.
From: 2011 Drucker Medal Paper: Localized Compaction in Porous Sandstones
J. Appl. Mech. 2013;80(6): doi: /
Figure Legend:
Modified from Fig. 5.17b of Ref. [16]. Contours of constant dilatancy angle Ψ and fault angle θcrit on a plot of dilatancy factor β against friction coefficient μ. Shaded rectangle shows the range of β and μ for compacting bands from Fig. 9 of Refs. [24,25].

6. Date of download: 10/29/2017
Copyright © ASME. All rights reserved.
From: 2011 Drucker Medal Paper: Localized Compaction in Porous Sandstones
J. Appl. Mech. 2013;80(6): doi: /
Figure Legend:
Compilation of field and laboratory data for midpoint thickness (mm) versus band half-length (m)

7. Date of download: 10/29/2017
Copyright © ASME. All rights reserved.
From: 2011 Drucker Medal Paper: Localized Compaction in Porous Sandstones
J. Appl. Mech. 2013;80(6): doi: /
Figure Legend:
Schematic of a combined anticrack and antidislocation model for compaction band propagation [27]. Because of the very small aspect ratios of the bands, the actual thickness of the zone (shaded area) is neglected. Consequently, the compactive displacement shown corresponds to interpenetration in the model.