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anisotropy 3

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Gauss-Legendre quadrature 1

Hankel transformation 1

Parkinson’s disease 1

algebraic-stress turbulent model 1

anisotropic damage 1

anisotropic effect 1

anisotropic effect size–signed differential mapping 1

anisotropic permeability 1

asphalt concrete overlay 1

compressible pore fluid 1

convection-diffusion 1

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finite element simulation 1

fractional anisotropy 1

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hot press-hot deformation 1

inclination of specimen preparation 1

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Effect of seismic wave propagation in massed medium on rate-dependent anisotropic damage growth in concrete

Alireza DANESHYAR, Hamid MOHAMMADNEZHAD, Mohsen GHAEMIAN

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 346-363 doi: 10.1007/s11709-021-0694-z

Abstract: Hence, a microplane-based anisotropic damage–plastic model of concrete is formulated to reproduce irreversible

Keywords: soil–structure interaction     massed foundation     radiation damping     anisotropic damage    

Uncoupled state space solution to layered poroelastic medium with anisotropic permeability and compressible

Zhiyong AI, Wenze ZENG, Yichong CHENG, Chao WU

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 171-179 doi: 10.1007/s11709-011-0103-0

Abstract: uncoupled state space solution to three-dimensional consolidation of layered poroelastic medium with anisotropic

Keywords: uncoupled state space solution     layered poroelastic medium     three-dimensional consolidation     anisotropic    

Effect of anisotropic characteristics on the mechanical behavior of asphalt concrete overlay

Lingyun YOU, Zhanping YOU, Kezhen YAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 110-122 doi: 10.1007/s11709-018-0476-4

Abstract: The strength contributed by the AC overlay is strongly influenced by the anisotropic properties of theanisotropy model against those corresponding to the isotropic model under static loads show that the anisotropicTherefore, future research concerning the reinforcement and repair of pavements should consider the anisotropic

Keywords: asphalt concrete overlay     anisotropy     temperature gradients     modulus gradients     finite element simulation     sensitivity analysis    

Experimental study on compaction-induced anisotropic mechanical property of rockfill material

Xiangtao ZHANG, Yizhao GAO, Yuan WANG, Yu-zhen YU, Xun SUN

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 109-123 doi: 10.1007/s11709-021-0693-0

Abstract: The anisotropy of rockfill materials has a significant influence on the performance of engineering structures. However, relevant research data are very limited, because of the difficulty with preparing specimens with different inclination angles using traditional methods. Furthermore, the anisotropy test of rockfill materials is complex and complicated, especially for triaxial tests, in which the major principal stress plane intersects with the compaction plane at different angles. In this study, the geometric characteristics of a typical particle fraction consisting of a specific rockfill material were statistically investigated, and the distribution characteristics of particle orientation in specimens prepared via different compaction methods were examined. For high-density rockfill materials, a set of specimen preparation devices for inclined compaction planes was developed, and a series of conventional triaxial compression tests with different principal stress direction angles were conducted. The results reveal that the principal stress direction angle has a significant effect on the modulus, shear strength, and dilatancy of the compacted rockfill materials. Analysis of the relationship between the principal stress direction angles, change in the stress state, and change in the corresponding dominant shear plane shows that the angle between the compacted surface and dominant shear plane is closely related to interlocking resistance associated with the particle orientation. In addition, different principal stress direction angles can change the extent of the particle interlocking effect, causing the specimen to exhibit different degrees of anisotropy.

Keywords: rockfill     inclination of specimen preparation     anisotropy     mechanical property     mechanism    

Finite element analysis of stress concentrations and failure criteria in composite plates with circular holes

Abdelhak KHECHAI,Abdelouahab TATI,Abdelhamid GUETTALA

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3,   Pages 281-294 doi: 10.1007/s11465-014-0307-9

Abstract:

In this study, the stress concentration factors (SCF) in cross-and-angle-ply laminated composite plates as well as in isotropic plates with single circular holes subjected to uniaxial loading is studied. A quadrilateral finite element of four-node with 32 degrees of freedom at each node, previously developed for the bending and mechanical buckling of laminated composite plates, is used to evaluate the stress distribution in laminated composite plates with central circular holes. Based up on the classical plate theory, the present finite element is a combination of a linear isoparametric membrane element and a high precision rectangular Hermitian element. The numerical results obtained by the present element compare favorably with those obtained by the analytic approaches published in literature. It is observed that the obtained results are very close to the reference results, which demonstrates the accuracy of the present element. Additionally, to determine the first ply failure (FPF) of laminated plate, several failure criterions are employed. Finally, to show the effect of ratio on the failure of plates, a number of figures are given for different fiber orientation angles.

Keywords: laminated composite plates     stress concentration     geometric singularity     anisotropic effect    

Anisotropy of multi-layered structure with sliding and bonded interlayer conditions

Lingyun YOU, Kezhen YAN, Jianhong MAN, Nengyuan LIU

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 632-645 doi: 10.1007/s11709-020-0617-4

Abstract: behaviors of multi-layered structure generated by axisymmetric loading, and to investigate the impact of anisotropicThe results have shown that the anisotropic layers and the interlayer conditions significantly affect

Keywords: multi-layered structure     Hankel transformation     anisotropic     transversely isotropic     interlayer condition    

Mechanism of hot-deformation and magnetic domains of anisotropic die-upset rare earth permanent magnets

Li Wei,Zhu Minggang

Strategic Study of CAE 2011, Volume 13, Issue 10,   Pages 4-12

Abstract:

In this paper, high performance of anisotropic de-upset nanoscale Nd-Fe-B

Keywords: nanoscale Nd-Fe-B magnets     hot press-hot deformation     anisotropy     magnetic domains    

Algebraic-stress Turbulent Model of Planar 2-D Pollutant Convection-Diffusion in Curvilinear Coordinates

Wu Xiuguang,Shen Yongming,Wang Min,Yang Zhifeng

Strategic Study of CAE 2005, Volume 7, Issue 7,   Pages 60-64

Abstract: The anisotropic algebraic-stress turbulent model is introduced to simulate the turbulence items, and

Keywords: pollutant     convection-diffusion     anisotropic     algebraic-stress turbulent model     k-ε model    

Altered white matter microarchitecture in Parkinson’s disease: a voxel-based meta-analysis of diffusion tensor imaging studies

Xueling Suo, Du Lei, Wenbin Li, Lei Li, Jing Dai, Song Wang, Nannan Li, Lan Cheng, Rong Peng, Graham J Kemp, Qiyong Gong

Frontiers of Medicine 2021, Volume 15, Issue 1,   Pages 125-138 doi: 10.1007/s11684-019-0725-5

Abstract: meta-analysis of whole-brain diffusion tensor imaging studies comparing PD with healthy controls (HC) using the anisotropic

Keywords: Parkinson’s disease     diffusion tensor imaging     fractional anisotropy     meta-analysis     anisotropic effect size–signed    

Title Author Date Type Operation

Effect of seismic wave propagation in massed medium on rate-dependent anisotropic damage growth in concrete

Alireza DANESHYAR, Hamid MOHAMMADNEZHAD, Mohsen GHAEMIAN

Journal Article

Uncoupled state space solution to layered poroelastic medium with anisotropic permeability and compressible

Zhiyong AI, Wenze ZENG, Yichong CHENG, Chao WU

Journal Article

Effect of anisotropic characteristics on the mechanical behavior of asphalt concrete overlay

Lingyun YOU, Zhanping YOU, Kezhen YAN

Journal Article

Experimental study on compaction-induced anisotropic mechanical property of rockfill material

Xiangtao ZHANG, Yizhao GAO, Yuan WANG, Yu-zhen YU, Xun SUN

Journal Article

Finite element analysis of stress concentrations and failure criteria in composite plates with circular holes

Abdelhak KHECHAI,Abdelouahab TATI,Abdelhamid GUETTALA

Journal Article

Anisotropy of multi-layered structure with sliding and bonded interlayer conditions

Lingyun YOU, Kezhen YAN, Jianhong MAN, Nengyuan LIU

Journal Article

Mechanism of hot-deformation and magnetic domains of anisotropic die-upset rare earth permanent magnets

Li Wei,Zhu Minggang

Journal Article

Algebraic-stress Turbulent Model of Planar 2-D Pollutant Convection-Diffusion in Curvilinear Coordinates

Wu Xiuguang,Shen Yongming,Wang Min,Yang Zhifeng

Journal Article

Altered white matter microarchitecture in Parkinson’s disease: a voxel-based meta-analysis of diffusion tensor imaging studies

Xueling Suo, Du Lei, Wenbin Li, Lei Li, Jing Dai, Song Wang, Nannan Li, Lan Cheng, Rong Peng, Graham J Kemp, Qiyong Gong

Journal Article