The dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation

Abstract The formation of compaction bands in porous brittle rocks such as sandstones and carbonates has a significant impact on the localization mechanisms preceding earth and planetary surface instabilities such as earthquakes, landslides, and plate boundary faults. The micromechanics underpinning...
Ausführliche Beschreibung

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Autor*in:	Chen, Xiao [verfasserIn] Roshan, Hamid [verfasserIn] Lv, Adelina [verfasserIn] Hu, Manman [verfasserIn] Regenauer-Lieb, Klaus [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2020

Schlagwörter:	Compaction bands Image processing Digital image correlation Time series analysis Microstructure

Übergeordnetes Werk:	Enthalten in: Progress in Earth and Planetary Science - Berlin : SpringerOpen, 2014, 7(2020), 1 vom: 26. Juni
Übergeordnetes Werk:	volume:7 ; year:2020 ; number:1 ; day:26 ; month:06

Links:	Volltext

DOI / URN:	10.1186/s40645-020-00344-0

Katalog-ID:	SPR040142426

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allfields	10.1186/s40645-020-00344-0 doi (DE-627)SPR040142426 (SPR)s40645-020-00344-0-e DE-627 ger DE-627 rakwb eng 550 ASE Chen, Xiao verfasserin aut The dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The formation of compaction bands in porous brittle rocks such as sandstones and carbonates has a significant impact on the localization mechanisms preceding earth and planetary surface instabilities such as earthquakes, landslides, and plate boundary faults. The micromechanics underpinning the dynamics of the formation of compaction bands and its effect on alteration of pore fluid pathways are not yet fully understood. The current study seeks to understand the mechanical properties of compaction in highly porous carbonate at micro- and macro-scale using time-lapse triaxial experiments in an X-ray transparent flow and deformation cell. Images were obtained with increasing axial strain levels using X-ray computed tomography allowing mapping of the evolution of internal structures. In addition to the X-ray analysis, digital image correlation (DIC) was used to quantify the evolution of strain and precisely identify the nucleation mechanism of compaction bands and its dynamics. The effect of friction on the boundary platens was shown to be minimal as evidenced by shear strain obtained from DIC analysis. This comprehensive analysis allowed assessment of the role of heterogeneity for the initiation of compaction bands. Local regions with high porosity provide the initial seeds for discrete compaction followed by the nucleation of traveling waves that lead to diffuse growth of the compaction zone. This interesting phenomenon is expected to be a fundamental mode of compressional deformation in porous brittle media where discrete, often periodic, deformation bands are observed on compaction. Compaction bands (dpeaa)DE-He213 Image processing (dpeaa)DE-He213 Digital image correlation (dpeaa)DE-He213 Time series analysis (dpeaa)DE-He213 Microstructure (dpeaa)DE-He213 Roshan, Hamid verfasserin aut Lv, Adelina verfasserin aut Hu, Manman verfasserin aut Regenauer-Lieb, Klaus verfasserin aut Enthalten in Progress in Earth and Planetary Science Berlin : SpringerOpen, 2014 7(2020), 1 vom: 26. Juni (DE-627)785702520 (DE-600)2769526-8 2197-4284 nnns volume:7 year:2020 number:1 day:26 month:06 https://dx.doi.org/10.1186/s40645-020-00344-0 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OPC-AST SSG-OPC-GEO SSG-OPC-GGO SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 7 2020 1 26 06
spelling	10.1186/s40645-020-00344-0 doi (DE-627)SPR040142426 (SPR)s40645-020-00344-0-e DE-627 ger DE-627 rakwb eng 550 ASE Chen, Xiao verfasserin aut The dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The formation of compaction bands in porous brittle rocks such as sandstones and carbonates has a significant impact on the localization mechanisms preceding earth and planetary surface instabilities such as earthquakes, landslides, and plate boundary faults. The micromechanics underpinning the dynamics of the formation of compaction bands and its effect on alteration of pore fluid pathways are not yet fully understood. The current study seeks to understand the mechanical properties of compaction in highly porous carbonate at micro- and macro-scale using time-lapse triaxial experiments in an X-ray transparent flow and deformation cell. Images were obtained with increasing axial strain levels using X-ray computed tomography allowing mapping of the evolution of internal structures. In addition to the X-ray analysis, digital image correlation (DIC) was used to quantify the evolution of strain and precisely identify the nucleation mechanism of compaction bands and its dynamics. The effect of friction on the boundary platens was shown to be minimal as evidenced by shear strain obtained from DIC analysis. This comprehensive analysis allowed assessment of the role of heterogeneity for the initiation of compaction bands. Local regions with high porosity provide the initial seeds for discrete compaction followed by the nucleation of traveling waves that lead to diffuse growth of the compaction zone. This interesting phenomenon is expected to be a fundamental mode of compressional deformation in porous brittle media where discrete, often periodic, deformation bands are observed on compaction. Compaction bands (dpeaa)DE-He213 Image processing (dpeaa)DE-He213 Digital image correlation (dpeaa)DE-He213 Time series analysis (dpeaa)DE-He213 Microstructure (dpeaa)DE-He213 Roshan, Hamid verfasserin aut Lv, Adelina verfasserin aut Hu, Manman verfasserin aut Regenauer-Lieb, Klaus verfasserin aut Enthalten in Progress in Earth and Planetary Science Berlin : SpringerOpen, 2014 7(2020), 1 vom: 26. Juni (DE-627)785702520 (DE-600)2769526-8 2197-4284 nnns volume:7 year:2020 number:1 day:26 month:06 https://dx.doi.org/10.1186/s40645-020-00344-0 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OPC-AST SSG-OPC-GEO SSG-OPC-GGO SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 7 2020 1 26 06
allfields_unstemmed	10.1186/s40645-020-00344-0 doi (DE-627)SPR040142426 (SPR)s40645-020-00344-0-e DE-627 ger DE-627 rakwb eng 550 ASE Chen, Xiao verfasserin aut The dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The formation of compaction bands in porous brittle rocks such as sandstones and carbonates has a significant impact on the localization mechanisms preceding earth and planetary surface instabilities such as earthquakes, landslides, and plate boundary faults. The micromechanics underpinning the dynamics of the formation of compaction bands and its effect on alteration of pore fluid pathways are not yet fully understood. The current study seeks to understand the mechanical properties of compaction in highly porous carbonate at micro- and macro-scale using time-lapse triaxial experiments in an X-ray transparent flow and deformation cell. Images were obtained with increasing axial strain levels using X-ray computed tomography allowing mapping of the evolution of internal structures. In addition to the X-ray analysis, digital image correlation (DIC) was used to quantify the evolution of strain and precisely identify the nucleation mechanism of compaction bands and its dynamics. The effect of friction on the boundary platens was shown to be minimal as evidenced by shear strain obtained from DIC analysis. This comprehensive analysis allowed assessment of the role of heterogeneity for the initiation of compaction bands. Local regions with high porosity provide the initial seeds for discrete compaction followed by the nucleation of traveling waves that lead to diffuse growth of the compaction zone. This interesting phenomenon is expected to be a fundamental mode of compressional deformation in porous brittle media where discrete, often periodic, deformation bands are observed on compaction. Compaction bands (dpeaa)DE-He213 Image processing (dpeaa)DE-He213 Digital image correlation (dpeaa)DE-He213 Time series analysis (dpeaa)DE-He213 Microstructure (dpeaa)DE-He213 Roshan, Hamid verfasserin aut Lv, Adelina verfasserin aut Hu, Manman verfasserin aut Regenauer-Lieb, Klaus verfasserin aut Enthalten in Progress in Earth and Planetary Science Berlin : SpringerOpen, 2014 7(2020), 1 vom: 26. Juni (DE-627)785702520 (DE-600)2769526-8 2197-4284 nnns volume:7 year:2020 number:1 day:26 month:06 https://dx.doi.org/10.1186/s40645-020-00344-0 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OPC-AST SSG-OPC-GEO SSG-OPC-GGO SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 7 2020 1 26 06
allfieldsGer	10.1186/s40645-020-00344-0 doi (DE-627)SPR040142426 (SPR)s40645-020-00344-0-e DE-627 ger DE-627 rakwb eng 550 ASE Chen, Xiao verfasserin aut The dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The formation of compaction bands in porous brittle rocks such as sandstones and carbonates has a significant impact on the localization mechanisms preceding earth and planetary surface instabilities such as earthquakes, landslides, and plate boundary faults. The micromechanics underpinning the dynamics of the formation of compaction bands and its effect on alteration of pore fluid pathways are not yet fully understood. The current study seeks to understand the mechanical properties of compaction in highly porous carbonate at micro- and macro-scale using time-lapse triaxial experiments in an X-ray transparent flow and deformation cell. Images were obtained with increasing axial strain levels using X-ray computed tomography allowing mapping of the evolution of internal structures. In addition to the X-ray analysis, digital image correlation (DIC) was used to quantify the evolution of strain and precisely identify the nucleation mechanism of compaction bands and its dynamics. The effect of friction on the boundary platens was shown to be minimal as evidenced by shear strain obtained from DIC analysis. This comprehensive analysis allowed assessment of the role of heterogeneity for the initiation of compaction bands. Local regions with high porosity provide the initial seeds for discrete compaction followed by the nucleation of traveling waves that lead to diffuse growth of the compaction zone. This interesting phenomenon is expected to be a fundamental mode of compressional deformation in porous brittle media where discrete, often periodic, deformation bands are observed on compaction. Compaction bands (dpeaa)DE-He213 Image processing (dpeaa)DE-He213 Digital image correlation (dpeaa)DE-He213 Time series analysis (dpeaa)DE-He213 Microstructure (dpeaa)DE-He213 Roshan, Hamid verfasserin aut Lv, Adelina verfasserin aut Hu, Manman verfasserin aut Regenauer-Lieb, Klaus verfasserin aut Enthalten in Progress in Earth and Planetary Science Berlin : SpringerOpen, 2014 7(2020), 1 vom: 26. Juni (DE-627)785702520 (DE-600)2769526-8 2197-4284 nnns volume:7 year:2020 number:1 day:26 month:06 https://dx.doi.org/10.1186/s40645-020-00344-0 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OPC-AST SSG-OPC-GEO SSG-OPC-GGO SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 7 2020 1 26 06
allfieldsSound	10.1186/s40645-020-00344-0 doi (DE-627)SPR040142426 (SPR)s40645-020-00344-0-e DE-627 ger DE-627 rakwb eng 550 ASE Chen, Xiao verfasserin aut The dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The formation of compaction bands in porous brittle rocks such as sandstones and carbonates has a significant impact on the localization mechanisms preceding earth and planetary surface instabilities such as earthquakes, landslides, and plate boundary faults. The micromechanics underpinning the dynamics of the formation of compaction bands and its effect on alteration of pore fluid pathways are not yet fully understood. The current study seeks to understand the mechanical properties of compaction in highly porous carbonate at micro- and macro-scale using time-lapse triaxial experiments in an X-ray transparent flow and deformation cell. Images were obtained with increasing axial strain levels using X-ray computed tomography allowing mapping of the evolution of internal structures. In addition to the X-ray analysis, digital image correlation (DIC) was used to quantify the evolution of strain and precisely identify the nucleation mechanism of compaction bands and its dynamics. The effect of friction on the boundary platens was shown to be minimal as evidenced by shear strain obtained from DIC analysis. This comprehensive analysis allowed assessment of the role of heterogeneity for the initiation of compaction bands. Local regions with high porosity provide the initial seeds for discrete compaction followed by the nucleation of traveling waves that lead to diffuse growth of the compaction zone. This interesting phenomenon is expected to be a fundamental mode of compressional deformation in porous brittle media where discrete, often periodic, deformation bands are observed on compaction. Compaction bands (dpeaa)DE-He213 Image processing (dpeaa)DE-He213 Digital image correlation (dpeaa)DE-He213 Time series analysis (dpeaa)DE-He213 Microstructure (dpeaa)DE-He213 Roshan, Hamid verfasserin aut Lv, Adelina verfasserin aut Hu, Manman verfasserin aut Regenauer-Lieb, Klaus verfasserin aut Enthalten in Progress in Earth and Planetary Science Berlin : SpringerOpen, 2014 7(2020), 1 vom: 26. Juni (DE-627)785702520 (DE-600)2769526-8 2197-4284 nnns volume:7 year:2020 number:1 day:26 month:06 https://dx.doi.org/10.1186/s40645-020-00344-0 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OPC-AST SSG-OPC-GEO SSG-OPC-GGO SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 7 2020 1 26 06
language	English
source	Enthalten in Progress in Earth and Planetary Science 7(2020), 1 vom: 26. Juni volume:7 year:2020 number:1 day:26 month:06
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institution	findex.gbv.de
topic_facet	Compaction bands Image processing Digital image correlation Time series analysis Microstructure
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container_title	Progress in Earth and Planetary Science
authorswithroles_txt_mv	Chen, Xiao @@aut@@ Roshan, Hamid @@aut@@ Lv, Adelina @@aut@@ Hu, Manman @@aut@@ Regenauer-Lieb, Klaus @@aut@@
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author	Chen, Xiao
spellingShingle	Chen, Xiao ddc 550 misc Compaction bands misc Image processing misc Digital image correlation misc Time series analysis misc Microstructure The dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation
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topic_title	550 ASE The dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation Compaction bands (dpeaa)DE-He213 Image processing (dpeaa)DE-He213 Digital image correlation (dpeaa)DE-He213 Time series analysis (dpeaa)DE-He213 Microstructure (dpeaa)DE-He213
topic	ddc 550 misc Compaction bands misc Image processing misc Digital image correlation misc Time series analysis misc Microstructure
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title	The dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation
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title_full	The dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation
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title_sort	dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation
title_auth	The dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation
abstract	Abstract The formation of compaction bands in porous brittle rocks such as sandstones and carbonates has a significant impact on the localization mechanisms preceding earth and planetary surface instabilities such as earthquakes, landslides, and plate boundary faults. The micromechanics underpinning the dynamics of the formation of compaction bands and its effect on alteration of pore fluid pathways are not yet fully understood. The current study seeks to understand the mechanical properties of compaction in highly porous carbonate at micro- and macro-scale using time-lapse triaxial experiments in an X-ray transparent flow and deformation cell. Images were obtained with increasing axial strain levels using X-ray computed tomography allowing mapping of the evolution of internal structures. In addition to the X-ray analysis, digital image correlation (DIC) was used to quantify the evolution of strain and precisely identify the nucleation mechanism of compaction bands and its dynamics. The effect of friction on the boundary platens was shown to be minimal as evidenced by shear strain obtained from DIC analysis. This comprehensive analysis allowed assessment of the role of heterogeneity for the initiation of compaction bands. Local regions with high porosity provide the initial seeds for discrete compaction followed by the nucleation of traveling waves that lead to diffuse growth of the compaction zone. This interesting phenomenon is expected to be a fundamental mode of compressional deformation in porous brittle media where discrete, often periodic, deformation bands are observed on compaction.
abstractGer	Abstract The formation of compaction bands in porous brittle rocks such as sandstones and carbonates has a significant impact on the localization mechanisms preceding earth and planetary surface instabilities such as earthquakes, landslides, and plate boundary faults. The micromechanics underpinning the dynamics of the formation of compaction bands and its effect on alteration of pore fluid pathways are not yet fully understood. The current study seeks to understand the mechanical properties of compaction in highly porous carbonate at micro- and macro-scale using time-lapse triaxial experiments in an X-ray transparent flow and deformation cell. Images were obtained with increasing axial strain levels using X-ray computed tomography allowing mapping of the evolution of internal structures. In addition to the X-ray analysis, digital image correlation (DIC) was used to quantify the evolution of strain and precisely identify the nucleation mechanism of compaction bands and its dynamics. The effect of friction on the boundary platens was shown to be minimal as evidenced by shear strain obtained from DIC analysis. This comprehensive analysis allowed assessment of the role of heterogeneity for the initiation of compaction bands. Local regions with high porosity provide the initial seeds for discrete compaction followed by the nucleation of traveling waves that lead to diffuse growth of the compaction zone. This interesting phenomenon is expected to be a fundamental mode of compressional deformation in porous brittle media where discrete, often periodic, deformation bands are observed on compaction.
abstract_unstemmed	Abstract The formation of compaction bands in porous brittle rocks such as sandstones and carbonates has a significant impact on the localization mechanisms preceding earth and planetary surface instabilities such as earthquakes, landslides, and plate boundary faults. The micromechanics underpinning the dynamics of the formation of compaction bands and its effect on alteration of pore fluid pathways are not yet fully understood. The current study seeks to understand the mechanical properties of compaction in highly porous carbonate at micro- and macro-scale using time-lapse triaxial experiments in an X-ray transparent flow and deformation cell. Images were obtained with increasing axial strain levels using X-ray computed tomography allowing mapping of the evolution of internal structures. In addition to the X-ray analysis, digital image correlation (DIC) was used to quantify the evolution of strain and precisely identify the nucleation mechanism of compaction bands and its dynamics. The effect of friction on the boundary platens was shown to be minimal as evidenced by shear strain obtained from DIC analysis. This comprehensive analysis allowed assessment of the role of heterogeneity for the initiation of compaction bands. Local regions with high porosity provide the initial seeds for discrete compaction followed by the nucleation of traveling waves that lead to diffuse growth of the compaction zone. This interesting phenomenon is expected to be a fundamental mode of compressional deformation in porous brittle media where discrete, often periodic, deformation bands are observed on compaction.
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title_short	The dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation
url	https://dx.doi.org/10.1186/s40645-020-00344-0
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author2	Roshan, Hamid Lv, Adelina Hu, Manman Regenauer-Lieb, Klaus
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up_date	2024-07-03T14:03:52.450Z
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Local regions with high porosity provide the initial seeds for discrete compaction followed by the nucleation of traveling waves that lead to diffuse growth of the compaction zone. 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The dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation

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