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Application of granular solid hydrodynamics to a well-graded unbound granular material undergoing triaxial

Shixiong SONG, Qicheng SUN, Feng JIN, Chuhan ZHANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 83-88 doi: 10.1007/s11709-012-0148-8

Abstract: Unbound granular materials (UGMs) are widely used as a base or a subbase in pavement construction.are generally well graded and exhibit a higher peak strength than that of conventional cohesionless granularBy using a simplified version of granular solid hydrodynamics (GSH), a set of GSH material constantsis determined for a UGM material.The results indicate that the GSH theory is able to describe such a special type of granular materials

Keywords： granular solid hydrodynamics     unbound granular material (UGM)     triaxial tests    

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Development of a constitutive model for rockfills and similar granular materials based on the disturbed

Mehdi VEISKARAMI, Ali GHORBANI, Mohammadreza ALAVIPOUR

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 365-378 doi: 10.1007/s11709-012-0178-2

Abstract: A series of standard triaxial compression tests were carried out on a quarried rockfill material at differentIt was found that both the stress level and the shear stress ratio, like most of granular materials,

Keywords： constitutive model     granular material     rockfill     plasticity     disturbed state concept     stress level    

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Iterative finite element model of nonlinear viscoplastic analyses for blended granular porous media

WU Yuching, ZHU Cimian

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4,   Pages 464-473 doi: 10.1007/s11709-007-0063-6

Abstract: element is used to represent a single particle, is generated to analyze the global behavior of multiple-material

Keywords： nonlinear viscoplastic     iterative     behavior     multiple-material    

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Smart optical-fiber structure monitoring based on granular computing

Guan LU, Dakai LIANG,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 462-465 doi: 10.1007/s11465-009-0073-2

Abstract: The buried optic fiber sensor can be used to test the parameters of the composite material.The granular computing method can reach the requirement of damage detection by analyzing digital signalspresents a method for realizing optic fiber smart structure monitoring and damage detection by using granularAfter the analysis, it is presumed that optic fiber smart structure monitoring based on granular computation

Keywords： smart material and structure     GrC     optical fiber sensor     rough set     clustering algorithm    

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Application of coupled multi-body dynamics–discrete element method for optimization of particle damper for cable vibration attenuation

Danhui DAN, Qianqing WANG, Jiongxin GONG

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 244-252 doi: 10.1007/s11709-021-0696-x

Abstract: With the application of the particle damping technology to cable vibration attenuation, the rootless cable damper overcomes the limit in installation height of existing dampers. Damping is achieved through energy dissipation by collisions and friction. In this paper, a coupled multi-body dynamics–discrete element method is proposed to simulate the damping of the damper–cable system under a harmonic excitation. The analyses are done by combining the discrete element method in EDEM and multi-body dynamics in ADAMS. The simulation results demonstrate the damping efficiency of rootless particle damper under different excitations and reveal the influence of the design parameters on its performance, including the filling ratio, particle size, coefficient of restitution, and coefficient of friction.

Keywords： granular material     vibration control     discrete element method     particle damper     cable vibration    

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Mesoscopic properties of dense granular materials: An overview

Qicheng SUN, Feng JIN, Guohua ZHANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 1-12 doi: 10.1007/s11709-013-0184-z

Abstract: A granular material is a conglomeration of discrete solid particles.However, for granular flows and solid-like states, the theory is still poorly understood because of theThe current theory is that the mesoscale characteristics define the key differences between granularWidespread interest in granular materials has arisen among physicists, and significant progress has beenA multiscale framework is then proposed for dense granular materials.

Keywords： granular matter     macroscopic structure     jamming phase transition    

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Effects of shear force on formation and properties of anoxic granular sludge in SBR

Xinyan ZHANG, Binbin WANG, Qingqing HAN, Hongmei ZHAO, Dangcong PENG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 6,   Pages 896-905 doi: 10.1007/s11783-013-0539-7

Abstract: This paper reports the effects of shear force on anoxic granular sludge in sequencing batch reactorsanoxic granules in the SBR in order to investigate the effects of shear force on the formation of anoxic granulargranules with smaller diameters, high density and good settling ability were formed in the reactor, and 2) granularshear force, such as was applied in SBR1, this research demonstrated that: 1) the activity of anoxic granular

Keywords： denitrification     anoxic granular sludge     sequencing batch reactors (SBR)     shear force    

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Force fluctuations in sheared granular disks

Mingbo YUAN, Qicheng SUN, Feng JIN

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 46-49 doi: 10.1007/s11709-013-0189-7

Abstract: The internal structure established within granular materials, often observed as force chains, is dominantThese results help reveal the structure and mechanics of granular materials, and further investigations

Keywords： granular matter     force chain     stick and slip    

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Visualization of force networks in 2D dense granular materials

Jianguo LIU, Qicheng SUN, Feng JIN,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1,   Pages 109-115 doi: 10.1007/s11709-010-0003-8

Abstract: Dense granular matter is a conglomeration of discrete solid and closely packed particles.photoelastic technique was improved for determining stresses and strains in the assemblies of photoelastic granular

Keywords： granular matter     force chain     multiscale modeling    

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Buffer capacity of granular matter to impact of spherical projectile based on discrete element method

Ying YAN, Pengfei LI, Shunying JI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 50-54 doi: 10.1007/s11709-013-0186-x

Abstract: Granular matter possesses impact-absorbing property due to its energy dissipation character.To investigate the impact-absorbing capacity of granular matter, the discrete element method (DEM) isadopted to simulate the impact of a spherical projectile on to a granular bed.The dynamic responses of the projectile are obtained for both thin and thick granular bed.Determining a suitable bed thickness is crucial to the buffering effect of granular matter.

Keywords： granular matter     impact peak     buffer capacity     discrete element method     critical thickness    

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Concept and application of anaerobic suspended granular sludge bed (SGSB) reactor for wastewater treatment

Mingxia ZHENG,Zhong YAN,Jiane ZUO,Kaijun WANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 797-804 doi: 10.1007/s11783-013-0597-x

Abstract: An analysis of the flow pattern of expanded granular sludge bed (EGSB) reactors shows that most EGSBA high-rate anaerobic suspended granular sludge bed (SGSB) reactor was then developed.

Keywords： expansion characteristic     high-rate bioreactor     anaerobic suspended granular sludge bed     expanded granular    

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Methanogenic community structure in simultaneous methanogenesis and denitrification granular sludge

Yujiao Sun, Juanjuan Zhao, Lili Chen, Yueqiao Liu, Jiane Zuo

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 4, doi: 10.1007/s11783-018-1067-2

Abstract:

• UASB with SMD granules was operated with high removal efficiency of COD and NO3--N.

• Methanosaetaceae was absolute predominant methanogen in SMD granules.

• The methanogen quantity and activity decreased as C/N decreased from 20:1 to 5:1.

• Bacterial community succession happened with C/N decreasing.

Keywords： Simultaneous methanogenesis and denitrification (SMD)     Methanogens     Community structure     Diversity index     Granular    

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A miniature triaxial apparatus for investigating the micromechanics of granular soils with

Zhuang CHENG, Jianfeng WANG, Matthew Richard COOP, Guanlin YE

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 357-373 doi: 10.1007/s11709-019-0599-2

Abstract: techniques, this apparatus can be used for investigation of the micro-scale mechanical behavior of granularX-ray μCT imaging techniques, is a powerful tool to investigate the micro-scale mechanical behavior of granular

Keywords： triaxial apparatus     X-ray μCT     in situ test     micro-scale mechanical behavior     granular soils    

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Two-scale modeling of granular materials: A FEM-FEM approach

Yun-Zhu CAI, Yu-Ching WU

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 3,   Pages 304-315 doi: 10.1007/s11709-013-0213-y

Abstract: homogenization-based two-scale FEM-FEM model is developed to simulate compactions of visco-plastic granularThe granular structure consisting of two-dimensional grains is modeled by the microscopic finite elementThe method could be used in a variety of problems that can be represented using granular media.

Keywords： homogenization     two-scale     representative volume element     compaction     granular assembly     finite element method    

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Fluorescence spectroscopic studies of the effect of granular activated carbon adsorption on structural

Shuang XUE, Qingliang ZHAO, Liangliang WEI, Xiujuan HUI, Xiping MA, Yingzi LIN

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 784-796 doi: 10.1007/s11783-012-0436-5

Abstract: This work investigated the effect of granular activated carbon adsorption (GACA) on fluorescence characteristics

Keywords： granular activated carbon adsorption     dissolved organic matter     fractionation     fluorescence    

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Title Author Date Type Operation

Application of granular solid hydrodynamics to a well-graded unbound granular material undergoing triaxial

Shixiong SONG, Qicheng SUN, Feng JIN, Chuhan ZHANG

Journal Article

Development of a constitutive model for rockfills and similar granular materials based on the disturbed

Mehdi VEISKARAMI, Ali GHORBANI, Mohammadreza ALAVIPOUR

Journal Article

Iterative finite element model of nonlinear viscoplastic analyses for blended granular porous media

WU Yuching, ZHU Cimian

Journal Article

Smart optical-fiber structure monitoring based on granular computing

Guan LU, Dakai LIANG,

Journal Article

Application of coupled multi-body dynamics–discrete element method for optimization of particle damper for cable vibration attenuation

Danhui DAN, Qianqing WANG, Jiongxin GONG

Journal Article

Mesoscopic properties of dense granular materials: An overview

Qicheng SUN, Feng JIN, Guohua ZHANG

Journal Article

Effects of shear force on formation and properties of anoxic granular sludge in SBR

Xinyan ZHANG, Binbin WANG, Qingqing HAN, Hongmei ZHAO, Dangcong PENG

Journal Article

Force fluctuations in sheared granular disks

Mingbo YUAN, Qicheng SUN, Feng JIN

Journal Article

Visualization of force networks in 2D dense granular materials

Jianguo LIU, Qicheng SUN, Feng JIN,

Journal Article

Buffer capacity of granular matter to impact of spherical projectile based on discrete element method

Ying YAN, Pengfei LI, Shunying JI

Journal Article

Concept and application of anaerobic suspended granular sludge bed (SGSB) reactor for wastewater treatment

Mingxia ZHENG,Zhong YAN,Jiane ZUO,Kaijun WANG

Journal Article

Methanogenic community structure in simultaneous methanogenesis and denitrification granular sludge

Yujiao Sun, Juanjuan Zhao, Lili Chen, Yueqiao Liu, Jiane Zuo

Journal Article

A miniature triaxial apparatus for investigating the micromechanics of granular soils with

Zhuang CHENG, Jianfeng WANG, Matthew Richard COOP, Guanlin YE

Journal Article

Two-scale modeling of granular materials: A FEM-FEM approach

Yun-Zhu CAI, Yu-Ching WU

Journal Article

Fluorescence spectroscopic studies of the effect of granular activated carbon adsorption on structural

Shuang XUE, Qingliang ZHAO, Liangliang WEI, Xiujuan HUI, Xiping MA, Yingzi LIN

Journal Article