Pub Date : 2020-12-17DOI: 10.1201/9781003077497-31
W. Saarloos, E. Somfai, J. Roux, Faculteit der Wiskunde en Natuurwetenschappen
We present numerical simulations of acoustic wave propagation in disordered granular media. Small amplitude oscillations of compressed static configurations of frictionless spherical grains are analyzed. Force chains, while important for the static properties of the granular assemblies, do not play a dominant role in transmitting acoustic waves according to our observations. Reasons include that the stiffness network is less widely distributed than the force network, and the nearby grains are coupled relatively strongly to grains in the force chain. The transmitted acoustic signal can be decomposed to an initial cycle and a more noisy tail, similarly to related experiments.
{"title":"Wave propagation in force chains","authors":"W. Saarloos, E. Somfai, J. Roux, Faculteit der Wiskunde en Natuurwetenschappen","doi":"10.1201/9781003077497-31","DOIUrl":"https://doi.org/10.1201/9781003077497-31","url":null,"abstract":"We present numerical simulations of acoustic wave propagation in disordered granular media. Small amplitude oscillations of compressed static configurations of frictionless spherical grains are analyzed. Force chains, while important for the static properties of the granular assemblies, do not play a dominant role in transmitting acoustic waves according to our observations. Reasons include that the stiffness network is less widely distributed than the force network, and the nearby grains are coupled relatively strongly to grains in the force chain. The transmitted acoustic signal can be decomposed to an initial cycle and a more noisy tail, similarly to related experiments.","PeriodicalId":166080,"journal":{"name":"Powders and Grains 2001","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128672233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-17DOI: 10.1201/9781003077497-120
S. Inagaki
{"title":"Pressure distribution under a two-dimensional sandpile","authors":"S. Inagaki","doi":"10.1201/9781003077497-120","DOIUrl":"https://doi.org/10.1201/9781003077497-120","url":null,"abstract":"","PeriodicalId":166080,"journal":{"name":"Powders and Grains 2001","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132017552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-17DOI: 10.1201/9781003077497-85
H. Takahashi, H. Yamanaka, S. Sekino, H. Hashimoto
{"title":"Study on the mixing behavior of excavated soils and additives in an excavated soil-recycling machine","authors":"H. Takahashi, H. Yamanaka, S. Sekino, H. Hashimoto","doi":"10.1201/9781003077497-85","DOIUrl":"https://doi.org/10.1201/9781003077497-85","url":null,"abstract":"","PeriodicalId":166080,"journal":{"name":"Powders and Grains 2001","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123637173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-17DOI: 10.1201/9781003077497-29
X. Jia, P. Mills
Two distinct types of small-amplitude sound propagation have been identified in a confined granular medium composed of non cohesive particles: one corresponds to coherent waves, the other to the waves scattered by the inhomogeneous force networks within the granular systems. Over long distances of propagation, the multiply scattered elastic waves exhibit a diffusive character of transport after configurational averaging. We studied elastic properties of dry and wet granular materials by measuring coherent elastic wave velocities as function of externally applied load and wetting liquid content. Experimental data associated with coherent waves agree quite well with the effective medium theory based on the Hertz-Mindlin contact mechanics. Also we have investigated the compaction of the granular medium induced by cyclic loading-unloading. The irreversible rearrangement of grains was measured by using a correlation technique of the multiple ultrasonic scattering which is very sensitive to the configuration change of granular media.
{"title":"Sound propagation in dense granular materials","authors":"X. Jia, P. Mills","doi":"10.1201/9781003077497-29","DOIUrl":"https://doi.org/10.1201/9781003077497-29","url":null,"abstract":"Two distinct types of small-amplitude sound propagation have been identified in a confined granular medium composed of non cohesive particles: one corresponds to coherent waves, the other to the waves scattered by the inhomogeneous force networks within the granular systems. Over long distances of propagation, the multiply scattered elastic waves exhibit a diffusive character of transport after configurational averaging. We studied elastic properties of dry and wet granular materials by measuring coherent elastic wave velocities as function of externally applied load and wetting liquid content. Experimental data associated with coherent waves agree quite well with the effective medium theory based on the Hertz-Mindlin contact mechanics. Also we have investigated the compaction of the granular medium induced by cyclic loading-unloading. The irreversible rearrangement of grains was measured by using a correlation technique of the multiple ultrasonic scattering which is very sensitive to the configuration change of granular media.","PeriodicalId":166080,"journal":{"name":"Powders and Grains 2001","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132592830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-17DOI: 10.1142/9789812771995_0010
R. Behringer
{"title":"Fluctuations in granular materials","authors":"R. Behringer","doi":"10.1142/9789812771995_0010","DOIUrl":"https://doi.org/10.1142/9789812771995_0010","url":null,"abstract":"","PeriodicalId":166080,"journal":{"name":"Powders and Grains 2001","volume":"53 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120872001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-17DOI: 10.1201/9781003077497-30
B. Gilles, C. Coste
{"title":"Nonlinear elasticity of a 2D regular array of beads","authors":"B. Gilles, C. Coste","doi":"10.1201/9781003077497-30","DOIUrl":"https://doi.org/10.1201/9781003077497-30","url":null,"abstract":"","PeriodicalId":166080,"journal":{"name":"Powders and Grains 2001","volume":"822 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126960169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-17DOI: 10.1201/9781003077497-24
H. Allersma
{"title":"Optical Analysis of Stress and Strain Around a Penetrating Probe in a Granular Medium","authors":"H. Allersma","doi":"10.1201/9781003077497-24","DOIUrl":"https://doi.org/10.1201/9781003077497-24","url":null,"abstract":"","PeriodicalId":166080,"journal":{"name":"Powders and Grains 2001","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121734709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Voronoi tessellation of packing of fine uniform spheres","authors":"R. Yang, R. Zou, A. Yu","doi":"10.1201/9781003077497-4","DOIUrl":"https://doi.org/10.1201/9781003077497-4","url":null,"abstract":"","PeriodicalId":166080,"journal":{"name":"Powders and Grains 2001","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114310745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-17DOI: 10.1201/9781003077497-70
M. Kuhn
{"title":"Strain gradient dependence and shear band formation in granular materials","authors":"M. Kuhn","doi":"10.1201/9781003077497-70","DOIUrl":"https://doi.org/10.1201/9781003077497-70","url":null,"abstract":"","PeriodicalId":166080,"journal":{"name":"Powders and Grains 2001","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128262632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-09-26DOI: 10.1201/9781003077497-21
P. Breul, R. Gourvès
{"title":"Geoendoscopy: a means to link mechanical and morphological information","authors":"P. Breul, R. Gourvès","doi":"10.1201/9781003077497-21","DOIUrl":"https://doi.org/10.1201/9781003077497-21","url":null,"abstract":"","PeriodicalId":166080,"journal":{"name":"Powders and Grains 2001","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126032418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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