Particle shape effect on the shear banding in DEM-simulated sands

Particle morphology is an essential characteristic that plays a crucial role in determining the mechanical responses of granular materials. A series of discrete element method (DEM) simulations of a mini-triaxial test were conducted, focusing on the shear behaviours of granular material. To mimic th...
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Autor*in:	Wu, Mengmeng [verfasserIn] Wu, Fanyu Wang, Jianfeng

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	Granular material Discrete element method Particle morphology Triaxial test Shear band

Anmerkung:	© The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022

Übergeordnetes Werk:	Enthalten in: Granular matter - Berlin : Springer, 1998, 24(2022), 2 vom: 17. Feb.
Übergeordnetes Werk:	volume:24 ; year:2022 ; number:2 ; day:17 ; month:02

Links:	Volltext

DOI / URN:	10.1007/s10035-022-01210-0

Katalog-ID:	SPR046259856

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520			\|a Particle morphology is an essential characteristic that plays a crucial role in determining the mechanical responses of granular materials. A series of discrete element method (DEM) simulations of a mini-triaxial test were conducted, focusing on the shear behaviours of granular material. To mimic the physical testing situation, DEM simulations were combined with micro-computed tomography, and image processing techniques and spherical harmonics analysis were utilised to reconstruct realistic particle morphology. The multisphere clump method and flexible-membrane technique were used to simulate three types of sand and allow flexible deformation in the radial direction. The numerical results show that the grains inside the shear band rotate more freely and exhibit obvious fabric anisotropy. The shear behaviours are strongly associated with the shape of the component particles. Specifically, with the increase in shape irregularity, the stiffness and peak deviatoric stress increase, and a more obvious dilation is observed during shearing. In addition, with particles ranging from regular to angular, less particle rotation and more intense fabric anisotropy occur. The numerical investigations highlight the significant role of particle morphology in the shear behaviours of granular materials. Graphical abstract
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allfields	10.1007/s10035-022-01210-0 doi (DE-627)SPR046259856 (SPR)s10035-022-01210-0-e DE-627 ger DE-627 rakwb eng Wu, Mengmeng verfasserin aut Particle shape effect on the shear banding in DEM-simulated sands 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022 Particle morphology is an essential characteristic that plays a crucial role in determining the mechanical responses of granular materials. A series of discrete element method (DEM) simulations of a mini-triaxial test were conducted, focusing on the shear behaviours of granular material. To mimic the physical testing situation, DEM simulations were combined with micro-computed tomography, and image processing techniques and spherical harmonics analysis were utilised to reconstruct realistic particle morphology. The multisphere clump method and flexible-membrane technique were used to simulate three types of sand and allow flexible deformation in the radial direction. The numerical results show that the grains inside the shear band rotate more freely and exhibit obvious fabric anisotropy. The shear behaviours are strongly associated with the shape of the component particles. Specifically, with the increase in shape irregularity, the stiffness and peak deviatoric stress increase, and a more obvious dilation is observed during shearing. In addition, with particles ranging from regular to angular, less particle rotation and more intense fabric anisotropy occur. The numerical investigations highlight the significant role of particle morphology in the shear behaviours of granular materials. Graphical abstract Granular material (dpeaa)DE-He213 Discrete element method (dpeaa)DE-He213 Particle morphology (dpeaa)DE-He213 Triaxial test (dpeaa)DE-He213 Shear band (dpeaa)DE-He213 Wu, Fanyu aut Wang, Jianfeng (orcid)0000-0002-6392-218X aut Enthalten in Granular matter Berlin : Springer, 1998 24(2022), 2 vom: 17. Feb. (DE-627)300183771 (DE-600)1481431-6 1434-7636 nnns volume:24 year:2022 number:2 day:17 month:02 https://dx.doi.org/10.1007/s10035-022-01210-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 24 2022 2 17 02
spelling	10.1007/s10035-022-01210-0 doi (DE-627)SPR046259856 (SPR)s10035-022-01210-0-e DE-627 ger DE-627 rakwb eng Wu, Mengmeng verfasserin aut Particle shape effect on the shear banding in DEM-simulated sands 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022 Particle morphology is an essential characteristic that plays a crucial role in determining the mechanical responses of granular materials. A series of discrete element method (DEM) simulations of a mini-triaxial test were conducted, focusing on the shear behaviours of granular material. To mimic the physical testing situation, DEM simulations were combined with micro-computed tomography, and image processing techniques and spherical harmonics analysis were utilised to reconstruct realistic particle morphology. The multisphere clump method and flexible-membrane technique were used to simulate three types of sand and allow flexible deformation in the radial direction. The numerical results show that the grains inside the shear band rotate more freely and exhibit obvious fabric anisotropy. The shear behaviours are strongly associated with the shape of the component particles. Specifically, with the increase in shape irregularity, the stiffness and peak deviatoric stress increase, and a more obvious dilation is observed during shearing. In addition, with particles ranging from regular to angular, less particle rotation and more intense fabric anisotropy occur. The numerical investigations highlight the significant role of particle morphology in the shear behaviours of granular materials. Graphical abstract Granular material (dpeaa)DE-He213 Discrete element method (dpeaa)DE-He213 Particle morphology (dpeaa)DE-He213 Triaxial test (dpeaa)DE-He213 Shear band (dpeaa)DE-He213 Wu, Fanyu aut Wang, Jianfeng (orcid)0000-0002-6392-218X aut Enthalten in Granular matter Berlin : Springer, 1998 24(2022), 2 vom: 17. Feb. (DE-627)300183771 (DE-600)1481431-6 1434-7636 nnns volume:24 year:2022 number:2 day:17 month:02 https://dx.doi.org/10.1007/s10035-022-01210-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 24 2022 2 17 02
allfields_unstemmed	10.1007/s10035-022-01210-0 doi (DE-627)SPR046259856 (SPR)s10035-022-01210-0-e DE-627 ger DE-627 rakwb eng Wu, Mengmeng verfasserin aut Particle shape effect on the shear banding in DEM-simulated sands 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022 Particle morphology is an essential characteristic that plays a crucial role in determining the mechanical responses of granular materials. A series of discrete element method (DEM) simulations of a mini-triaxial test were conducted, focusing on the shear behaviours of granular material. To mimic the physical testing situation, DEM simulations were combined with micro-computed tomography, and image processing techniques and spherical harmonics analysis were utilised to reconstruct realistic particle morphology. The multisphere clump method and flexible-membrane technique were used to simulate three types of sand and allow flexible deformation in the radial direction. The numerical results show that the grains inside the shear band rotate more freely and exhibit obvious fabric anisotropy. The shear behaviours are strongly associated with the shape of the component particles. Specifically, with the increase in shape irregularity, the stiffness and peak deviatoric stress increase, and a more obvious dilation is observed during shearing. In addition, with particles ranging from regular to angular, less particle rotation and more intense fabric anisotropy occur. The numerical investigations highlight the significant role of particle morphology in the shear behaviours of granular materials. Graphical abstract Granular material (dpeaa)DE-He213 Discrete element method (dpeaa)DE-He213 Particle morphology (dpeaa)DE-He213 Triaxial test (dpeaa)DE-He213 Shear band (dpeaa)DE-He213 Wu, Fanyu aut Wang, Jianfeng (orcid)0000-0002-6392-218X aut Enthalten in Granular matter Berlin : Springer, 1998 24(2022), 2 vom: 17. Feb. (DE-627)300183771 (DE-600)1481431-6 1434-7636 nnns volume:24 year:2022 number:2 day:17 month:02 https://dx.doi.org/10.1007/s10035-022-01210-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 24 2022 2 17 02
allfieldsGer	10.1007/s10035-022-01210-0 doi (DE-627)SPR046259856 (SPR)s10035-022-01210-0-e DE-627 ger DE-627 rakwb eng Wu, Mengmeng verfasserin aut Particle shape effect on the shear banding in DEM-simulated sands 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022 Particle morphology is an essential characteristic that plays a crucial role in determining the mechanical responses of granular materials. A series of discrete element method (DEM) simulations of a mini-triaxial test were conducted, focusing on the shear behaviours of granular material. To mimic the physical testing situation, DEM simulations were combined with micro-computed tomography, and image processing techniques and spherical harmonics analysis were utilised to reconstruct realistic particle morphology. The multisphere clump method and flexible-membrane technique were used to simulate three types of sand and allow flexible deformation in the radial direction. The numerical results show that the grains inside the shear band rotate more freely and exhibit obvious fabric anisotropy. The shear behaviours are strongly associated with the shape of the component particles. Specifically, with the increase in shape irregularity, the stiffness and peak deviatoric stress increase, and a more obvious dilation is observed during shearing. In addition, with particles ranging from regular to angular, less particle rotation and more intense fabric anisotropy occur. The numerical investigations highlight the significant role of particle morphology in the shear behaviours of granular materials. Graphical abstract Granular material (dpeaa)DE-He213 Discrete element method (dpeaa)DE-He213 Particle morphology (dpeaa)DE-He213 Triaxial test (dpeaa)DE-He213 Shear band (dpeaa)DE-He213 Wu, Fanyu aut Wang, Jianfeng (orcid)0000-0002-6392-218X aut Enthalten in Granular matter Berlin : Springer, 1998 24(2022), 2 vom: 17. Feb. (DE-627)300183771 (DE-600)1481431-6 1434-7636 nnns volume:24 year:2022 number:2 day:17 month:02 https://dx.doi.org/10.1007/s10035-022-01210-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 24 2022 2 17 02
allfieldsSound	10.1007/s10035-022-01210-0 doi (DE-627)SPR046259856 (SPR)s10035-022-01210-0-e DE-627 ger DE-627 rakwb eng Wu, Mengmeng verfasserin aut Particle shape effect on the shear banding in DEM-simulated sands 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022 Particle morphology is an essential characteristic that plays a crucial role in determining the mechanical responses of granular materials. A series of discrete element method (DEM) simulations of a mini-triaxial test were conducted, focusing on the shear behaviours of granular material. To mimic the physical testing situation, DEM simulations were combined with micro-computed tomography, and image processing techniques and spherical harmonics analysis were utilised to reconstruct realistic particle morphology. The multisphere clump method and flexible-membrane technique were used to simulate three types of sand and allow flexible deformation in the radial direction. The numerical results show that the grains inside the shear band rotate more freely and exhibit obvious fabric anisotropy. The shear behaviours are strongly associated with the shape of the component particles. Specifically, with the increase in shape irregularity, the stiffness and peak deviatoric stress increase, and a more obvious dilation is observed during shearing. In addition, with particles ranging from regular to angular, less particle rotation and more intense fabric anisotropy occur. The numerical investigations highlight the significant role of particle morphology in the shear behaviours of granular materials. Graphical abstract Granular material (dpeaa)DE-He213 Discrete element method (dpeaa)DE-He213 Particle morphology (dpeaa)DE-He213 Triaxial test (dpeaa)DE-He213 Shear band (dpeaa)DE-He213 Wu, Fanyu aut Wang, Jianfeng (orcid)0000-0002-6392-218X aut Enthalten in Granular matter Berlin : Springer, 1998 24(2022), 2 vom: 17. Feb. (DE-627)300183771 (DE-600)1481431-6 1434-7636 nnns volume:24 year:2022 number:2 day:17 month:02 https://dx.doi.org/10.1007/s10035-022-01210-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 24 2022 2 17 02
language	English
source	Enthalten in Granular matter 24(2022), 2 vom: 17. Feb. volume:24 year:2022 number:2 day:17 month:02
sourceStr	Enthalten in Granular matter 24(2022), 2 vom: 17. Feb. volume:24 year:2022 number:2 day:17 month:02
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Granular material Discrete element method Particle morphology Triaxial test Shear band
isfreeaccess_bool	false
container_title	Granular matter
authorswithroles_txt_mv	Wu, Mengmeng @@aut@@ Wu, Fanyu @@aut@@ Wang, Jianfeng @@aut@@
publishDateDaySort_date	2022-02-17T00:00:00Z
hierarchy_top_id	300183771
id	SPR046259856
language_de	englisch
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author	Wu, Mengmeng
spellingShingle	Wu, Mengmeng misc Granular material misc Discrete element method misc Particle morphology misc Triaxial test misc Shear band Particle shape effect on the shear banding in DEM-simulated sands
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topic_title	Particle shape effect on the shear banding in DEM-simulated sands Granular material (dpeaa)DE-He213 Discrete element method (dpeaa)DE-He213 Particle morphology (dpeaa)DE-He213 Triaxial test (dpeaa)DE-He213 Shear band (dpeaa)DE-He213
topic	misc Granular material misc Discrete element method misc Particle morphology misc Triaxial test misc Shear band
topic_unstemmed	misc Granular material misc Discrete element method misc Particle morphology misc Triaxial test misc Shear band
topic_browse	misc Granular material misc Discrete element method misc Particle morphology misc Triaxial test misc Shear band
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title	Particle shape effect on the shear banding in DEM-simulated sands
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title_full	Particle shape effect on the shear banding in DEM-simulated sands
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author_browse	Wu, Mengmeng Wu, Fanyu Wang, Jianfeng
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title_sort	particle shape effect on the shear banding in dem-simulated sands
title_auth	Particle shape effect on the shear banding in DEM-simulated sands
abstract	Particle morphology is an essential characteristic that plays a crucial role in determining the mechanical responses of granular materials. A series of discrete element method (DEM) simulations of a mini-triaxial test were conducted, focusing on the shear behaviours of granular material. To mimic the physical testing situation, DEM simulations were combined with micro-computed tomography, and image processing techniques and spherical harmonics analysis were utilised to reconstruct realistic particle morphology. The multisphere clump method and flexible-membrane technique were used to simulate three types of sand and allow flexible deformation in the radial direction. The numerical results show that the grains inside the shear band rotate more freely and exhibit obvious fabric anisotropy. The shear behaviours are strongly associated with the shape of the component particles. Specifically, with the increase in shape irregularity, the stiffness and peak deviatoric stress increase, and a more obvious dilation is observed during shearing. In addition, with particles ranging from regular to angular, less particle rotation and more intense fabric anisotropy occur. The numerical investigations highlight the significant role of particle morphology in the shear behaviours of granular materials. Graphical abstract © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022
abstractGer	Particle morphology is an essential characteristic that plays a crucial role in determining the mechanical responses of granular materials. A series of discrete element method (DEM) simulations of a mini-triaxial test were conducted, focusing on the shear behaviours of granular material. To mimic the physical testing situation, DEM simulations were combined with micro-computed tomography, and image processing techniques and spherical harmonics analysis were utilised to reconstruct realistic particle morphology. The multisphere clump method and flexible-membrane technique were used to simulate three types of sand and allow flexible deformation in the radial direction. The numerical results show that the grains inside the shear band rotate more freely and exhibit obvious fabric anisotropy. The shear behaviours are strongly associated with the shape of the component particles. Specifically, with the increase in shape irregularity, the stiffness and peak deviatoric stress increase, and a more obvious dilation is observed during shearing. In addition, with particles ranging from regular to angular, less particle rotation and more intense fabric anisotropy occur. The numerical investigations highlight the significant role of particle morphology in the shear behaviours of granular materials. Graphical abstract © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022
abstract_unstemmed	Particle morphology is an essential characteristic that plays a crucial role in determining the mechanical responses of granular materials. A series of discrete element method (DEM) simulations of a mini-triaxial test were conducted, focusing on the shear behaviours of granular material. To mimic the physical testing situation, DEM simulations were combined with micro-computed tomography, and image processing techniques and spherical harmonics analysis were utilised to reconstruct realistic particle morphology. The multisphere clump method and flexible-membrane technique were used to simulate three types of sand and allow flexible deformation in the radial direction. The numerical results show that the grains inside the shear band rotate more freely and exhibit obvious fabric anisotropy. The shear behaviours are strongly associated with the shape of the component particles. Specifically, with the increase in shape irregularity, the stiffness and peak deviatoric stress increase, and a more obvious dilation is observed during shearing. In addition, with particles ranging from regular to angular, less particle rotation and more intense fabric anisotropy occur. The numerical investigations highlight the significant role of particle morphology in the shear behaviours of granular materials. Graphical abstract © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022
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title_short	Particle shape effect on the shear banding in DEM-simulated sands
url	https://dx.doi.org/10.1007/s10035-022-01210-0
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doi_str	10.1007/s10035-022-01210-0
up_date	2024-07-03T21:24:35.823Z
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Particle shape effect on the shear banding in DEM-simulated sands

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