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Strain localization analyses of idealized sands in biaxial tests by distinct element method

Mingjing JIANG, Hehua ZHU, Xiumei LI,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 2,   Pages 208-222 doi: 10.1007/s11709-010-0025-2

Abstract: investigation on the strain localization of an idealized sand in biaxial compression tests using the distinctelement method (DEM).and distributions of void ratio, particle velocity, and the averaged pure rotation rate (APR) in the DEM

Keywords： idealized sand     strain localization     numerical analyses     distinct element method (DEM)    

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Application of the expanded distinct element method for the study of crack growth in rock-like materials

Lei YANG, Yujing JIANG, Bo LI, Shucai LI, Yang GAO

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 121-131 doi: 10.1007/s11709-012-0151-0

Abstract: The expanded distinct element method (EDEM) was used to investigate the crack growth in rock-like materials

Keywords： expanded distinct element method (EDEM)     crack growth     rock-like material     tensile-shear failure criterion    

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Discrete element method modeling of corn-shaped particle flow in rectangular hopper

He TAO, Baosheng JIN, Wenqi ZHONG, Xiaofang WANG,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 2,   Pages 267-275 doi: 10.1007/s11709-010-0035-0

Abstract: Discrete element method (DEM) was developed to simulate the corn-shaped particles flow in the hopper.

Keywords： discrete         element        method        (DEM)             non-spherical    

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Influence mechanism of dynamic and static liquid bridge forces on particle deposition behaviors in solar photovoltaic mirrors

Xueqing LIU, Xiaodong ZHAO, Luyi LU, Jianlan LI

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 499-512 doi: 10.1007/s11708-021-0742-3

Abstract: Solar energy is one of the most promising forms of renewable energy for solving the energy crisis and environmental problems. Dust deposition on photovoltaic mirrors has a serious negative impact on the photoelectric conversion efficiency of solar power stations. In this paper, the influence mechanism of the dynamic and static liquid bridge forces on particle deposition behaviors on solar photovoltaic mirrors is investigated. In addition, the expression and physical meaning of the particle critical separation velocity are proposed. The research results show that the static liquid bridge force can be the primary deposition force causing dust particles to adhere to photovoltaic mirrors. However, the dynamic liquid bridge force can act as a resistance force for the particle motion process and even make dust particles roll along and finally stay on the mirror. The contact force is the primary separation force that causes dust particles to flow away from the mirror. Whether dust particles adhere to the mirror depends on the relative size of the deposition and separating forces. The particle critical separation velocity describes the relative size of the collision-rebound effect and mirror adhesion effect and is expressed in Eq. (16). These research findings can provide theoretical guidance for mirror cleaning methods in the operation process of photovoltaic mirrors.

Keywords： dust deposition     discrete element method (DEM)     photovoltaic mirrors     solar energy    

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Numerical simulation of two-dimensional spouted bed with draft plates by discrete element method

ZHAO Yongzhi, JIANG Maoqiang, CHENG Yi, JIN Yong

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 5-9 doi: 10.1007/s11705-008-0009-0

Abstract: A discrete element method (DEM)-computational fluid dynamics (CFD) two-way coupling method was employedThe motion of particles was modeled by the DEM and the gas flow was modeled by the Navier-Stokes equationThe interactions between gas and particles were considered using a two-way coupling method.element method (BEM).The minimal spouted velocity was obtained by the BEM-DEM-CFD simulation and the variation of the flow

Keywords： annulus     BEM-DEM-CFD simulation     gas-solid     two-dimensional     relationship    

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The smoothed finite element method (S-FEM): A framework for the design of numerical models for desired

Gui-Rong Liu

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 456-477 doi: 10.1007/s11709-019-0519-5

Abstract:

The smoothed finite element method (S-FEM) was originated by G R Liu by combining some meshfree techniqueswith the well-established standard finite element method (FEM).

Keywords： computational method     finite element method     smoothed finite element method     strain smoothing technique    

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Design flood of ungauged basins based on DEM

Zhang Ting,Feng Ping

Strategic Study of CAE 2011, Volume 13, Issue 12,   Pages 68-73

Abstract: mountainous area of Fuzhou City which is an ungauged basin has been taken for example to discuss the methodof design flood calculation by means of combining the DEM (digital elevation model) and the Xin'In the convergence calculation, the isochrones are obtained by DEM which helps to avoid the cumbersome

Keywords： ungauged area     design flood     digital elevation model (DEM)     isochrones    

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3D mode discrete element method with the elastoplastic model

Wei HU, Feng JIN, Chong ZHANG, Jinting WANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1,   Pages 57-68 doi: 10.1007/s11709-012-0139-9

Abstract: The three-dimensional mode-deformable discrete element method (3MDEM) is an extended distinct element

Keywords： mode discrete element method     elastoplastic     numerical method     discontinuum     contact    

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Applying the spectral stochastic finite element method in multiple-random field RC structures

Abbas YAZDANI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 4,   Pages 434-447 doi: 10.1007/s11709-022-0820-6

Abstract: This paper uses the spectral stochastic finite element method (SSFEM) for analyzing reinforced concrete

Keywords： uncertainty     spectral stochastic finite element method     correlation length     reliability assessment     reinforced    

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Analysis of the Quality of Daily DEM Generation with Geosynchronous InSAR Article

Zefa Yang, Qingjun Zhang, Xiaoli Ding, Wu Chen

Engineering 2020, Volume 6, Issue 8,   Pages 913-918 doi: 10.1016/j.eng.2020.07.003

Abstract:

Up-to-date digital elevation model (DEM) products are essential in many fields such as hazards mitigationspace-borne interferometric synthetic aperture radar (InSAR) has been proven to be a valuable tool for DEMThis offers great potential for the daily DEM generation that is desirable yet thus far impossible withIn this work, we systematically analyze the quality of daily GEOSAR DEM.The results indicate that the accuracy of a daily GEOSAR DEM is generally much lower than what can be

Keywords： Daily digital elevation model     Interferometric synthetic aperture radar     Geosynchronous synthetic aperture radar     Accuracy analysis    

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Acoustic analysis of lightweight auto-body based on finite element method and boundary element method

LIANG Xinhua, ZHU Ping, LIN Zhongqin, ZHANG Yan

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 99-103 doi: 10.1007/s11465-007-0017-7

Abstract: lightweight automotive prototype using alternative materials and gauge thickness is studied by a numerical methodof 1 150 Hz, the frequency response function (FRF) of the body structure is calculated by a finite elementmethod (FEM) to get the dynamic behavior of the auto-body structure.The pressure response of the interior acoustic domain is solved by a boundary element method (BEM).

Keywords： harshness     automotive prototype     structural optimization     vibration     efficient    

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Special Column on Multiscale Stochastic Finite Element Method

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 105-106 doi: 10.1007/s11709-015-0297-7

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Slope stability analysis based on a multigrid method using a nonlinear 3D finite element model

Yaoru LIU, Zhu HE, Bo LI, Qiang YANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 24-31 doi: 10.1007/s11709-013-0190-1

Abstract: The rigid-body limit equilibrium method cannot reflect the actual stress distribution in a rock mass,and the finite-element-based strength reduction method also has some problems with respect to convergencefor finite element computation and a slip surface grid for computing slope stability safety factors.through a combination of nonlinear finite element analysis and limit equilibrium analysis.adopted in the nonlinear finite element computation.

Keywords： slope     stability     multi-grid method     nonlinear     finite element method    

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Comparison of indirect boundary element and finite element methods A case study: Shiraz-Esfahan railway

Amin MANOUCHEHRIAN, Mohammad Fatehi MARJI, Mohsen MOHEBBI

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 385-392 doi: 10.1007/s11709-012-0173-7

Abstract: Recently, various numerical methods such as finite element method (FEM), discrete element method (DEM), finite difference method (FDM) and boundary element method (BEM) have been used extremely in geosciencesThis paper suggests the implementation of the indirect boundary element method (IBEM) as a formulationFor this purpose, this tunnel has been modeled numerically using two-dimensional fictitious stress methodTo validate the results, they were compared with FEM results as a commonly used numerical method.

Keywords： indirect boundary element method     finite element method     displacement     tunnel     case study    

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

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: In this paper, a coupled multi-body dynamics–discrete element method is proposed to simulate the dampingThe analyses are done by combining the discrete element method in EDEM and multi-body dynamics in ADAMS

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

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Title Author Date Type Operation

Strain localization analyses of idealized sands in biaxial tests by distinct element method

Mingjing JIANG, Hehua ZHU, Xiumei LI,

Journal Article

Application of the expanded distinct element method for the study of crack growth in rock-like materials

Lei YANG, Yujing JIANG, Bo LI, Shucai LI, Yang GAO

Journal Article

Discrete element method modeling of corn-shaped particle flow in rectangular hopper

He TAO, Baosheng JIN, Wenqi ZHONG, Xiaofang WANG,

Journal Article

Influence mechanism of dynamic and static liquid bridge forces on particle deposition behaviors in solar photovoltaic mirrors

Xueqing LIU, Xiaodong ZHAO, Luyi LU, Jianlan LI

Journal Article

Numerical simulation of two-dimensional spouted bed with draft plates by discrete element method

ZHAO Yongzhi, JIANG Maoqiang, CHENG Yi, JIN Yong

Journal Article

The smoothed finite element method (S-FEM): A framework for the design of numerical models for desired

Gui-Rong Liu

Journal Article

Design flood of ungauged basins based on DEM

Zhang Ting,Feng Ping

Journal Article

3D mode discrete element method with the elastoplastic model

Wei HU, Feng JIN, Chong ZHANG, Jinting WANG

Journal Article

Applying the spectral stochastic finite element method in multiple-random field RC structures

Abbas YAZDANI

Journal Article

Analysis of the Quality of Daily DEM Generation with Geosynchronous InSAR

Zefa Yang, Qingjun Zhang, Xiaoli Ding, Wu Chen

Journal Article

Acoustic analysis of lightweight auto-body based on finite element method and boundary element method

LIANG Xinhua, ZHU Ping, LIN Zhongqin, ZHANG Yan

Journal Article

Special Column on Multiscale Stochastic Finite Element Method

Journal Article

Slope stability analysis based on a multigrid method using a nonlinear 3D finite element model

Yaoru LIU, Zhu HE, Bo LI, Qiang YANG

Journal Article

Comparison of indirect boundary element and finite element methods A case study: Shiraz-Esfahan railway

Amin MANOUCHEHRIAN, Mohammad Fatehi MARJI, Mohsen MOHEBBI

Journal Article

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

Danhui DAN, Qianqing WANG, Jiongxin GONG

Journal Article