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Evaluation of the stability of terraced slopes in clayey gravel soil using a novel numerical technique

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 796-811 doi: 10.1007/s11709-023-0922-9

Abstract: technique based on SRM was developed to determine SF using the finite element method and considering the extendedCam–clay constitutive model for clayey gravel soil as opposed to the Mohr–Coulomb model.

Keywords： terraced slope     safety factor     finite element method     ABAQUS     extended Cam–clay    

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Optimal design of a linkage–cam mechanism-based redundantly actuated parallel manipulator

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 451-467 doi: 10.1007/s11465-021-0634-6

Abstract: As an example, this paper presents a spatial RAPM involving linkages and cam mechanisms.

Keywords： redundant actuation     parallel manipulator     linkage–cam mechanism     Jacobian     optimal design    

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Nonlinear dynamic behaviour of a cam mechanism with oscillating roller follower in presence of profile

Walha LASSAAD, Tounsi MOHAMED, Driss YASSINE, Chaari FAKHER, Fakhfakh TAHER, Haddar MOHAMED

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 2,   Pages 127-136 doi: 10.1007/s11465-013-0254-x

Abstract:

In this paper we investigate the nonlinear dynamic behaviour of a cam mechanism with oscillating rollerThe first one is located between cam and first roller while the second is between second roller and theThe influence of the cam profile error on the dynamic behaviour is also investigated.

Keywords： cam     nonlinear behaviour     oscillating roller follower     profile error    

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Bearing and uplift capacities of under-reamed piles in soft clay underlaid by stiff clay using lower-bound

Mantu MAJUMDER, Debarghya CHAKRABORTY

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 537-551 doi: 10.1007/s11709-021-0708-x

Abstract: Ensuring a safe foundation design in soft clay is always a challenging task to engineers.In the present study, the effectiveness of under-reamed piles in soft clay underlaid by stiff clay iswith the increase in the length-to-shaft-diameter ratio ( / ) and adhesion factors in soft clay ( )and stiff clay ( ).and soft clay underlaid by stiff clay.

Keywords： bearing capacity     uplift capacity     under-reamed pile     clay     limit analysis    

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Selecting and prioritizing key factors for CAD/CAM software in small- and medium-sized enterprises using

Ghulam ZAKRIA, Zailin GUAN, Yasser RIAZ, Mirza JAHANZAIB, Anwar KHAN,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 157-164 doi: 10.1007/s11465-010-0017-x

Abstract: In today’s fast-paced world, computer-aided design/computer-aided manufacturing (CAD/CAM) systemsPrior to investment in a CAD/CAM system, it is essential for investor to know how to maximize their benefitsfrom buying a new or by changing an existing CAD/CAM system.methodology to assist small- and medium-sized manufacturing companies of Pakistan in selecting a CAD/CAMTo accomplish this purpose, data have been collected about current CAD/CAM systems.

Keywords： computer-aided design (CAD)     computer-aided manufacturing(CAM)     SMEs     analytical hierarchal approach     Expert    

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Research and Development of CAD/CAPP/CAM Integrated System

Wei Erwei,Liang Muyang,Yang Ping

Strategic Study of CAE 2000, Volume 2, Issue 4,   Pages 59-63

Abstract:

In this paper a practical CAD/CAPP/CAM integrated system is introduced.developed by mechanical designers, process planners and NC progragmmers on the basis of a commercial CAD/CAMIt consists of three subsystems： Feature Recognition Subsystem, CAPP Subsystem and Automatical CAM SubsystemIn Automatical CAM Subsystem, NC sequences for machining the part are created automatically according

Keywords： CAD     CAPP     CAM     feature recognition    

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Model testing of tripod caisson foundations in silty clay subjected to eccentric lateral loads

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 467-476 doi: 10.1007/s11709-023-0933-6

Abstract: the bearing capacities of tripod caisson foundations subjected to eccentric lateral loads in silty clay

Keywords： tripod caisson foundation     silty clay     eccentric lateral capacity     model tests    

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Behavior of compacted clay-concrete interface

R. R .SHAKIR, Jungao ZHU

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 85-92 doi: 10.1007/s11709-009-0013-6

Abstract: Tests of interface between compacted clay and concrete were conducted systematically using interfacewater content, normal stress and rough surface on the shear stress-shear displacement relationship of clay-concretedisplacement behavior for both cases of relatively rough and smooth concrete surface except when the claygreater than 16% for the case of rough concrete surface where the shear failure occurs in the body of the claythe interface shear strength increases with increasing water content ratio especially for the case of clay-rough

Keywords： soil structure interaction     simple shear test     interface     friction     compacted clay     interface modeling    

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Principle and curve of planetary indexing cam mechanisms

LIU Ming-tao, ZHANG Ce, YANG Yu-hu

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 475-478 doi: 10.1007/s11465-006-0063-6

Abstract: A new type of planetary indexing cam mechanism called type !c is presented.Based on the principle of formation of conjugate tooth contour, the equations of the cam s pitch curveThe continuity and symmetry of the cam s pitch curve are also analyzed.overcome dead point and its phase angle is equal to (π - 2π/n); 3) The continuous condition of the cam

Keywords： continuity     planetary     average transmission     symmetry     intermittent    

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Analysis of cement-treated clay behavior by micromechanical approach

Dong-Mei ZHANG, Zhen-Yu YIN, Pierre-Yves HICHER, Hong-Wei HUANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 2,   Pages 137-153 doi: 10.1007/s11709-013-0204-z

Abstract: Cementation is produced by mixing a certain amount of cement with the saturated clay.purpose of this paper is to model the cementation effect on the mechanical behavior of cement-treated claycompression and undrained triaxial tests under various confining stresses on cement-treated Ariake clayand Singapore clay with various cement contents.micromechanical approach is well adapted for taking into account the main physical properties of cement-treated clay

Keywords： microstructure     cementation     clay     micromechanics     anisotropy     debonding    

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the improvement design of dynamic characteristics for the roller follower of a variable-speed plate cam

Hui Ching FAN, Hong Sen YAN

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 5-15 doi: 10.1007/s11465-012-0310-y

Abstract:

Without modifying the cam contour, a cam mechanism with a variable input speed trajectory offers anFirstly, the speed trajectory of cam is derived by employing Bezier curve, and motion continuity conditionsThen the motion characteristics between the plate cam and its roller follower are derived.To analyze the residual vibration, a single degree of freedom dynamic model of the elastic cam-follower

Keywords： cam mechanism     variable input speed     kinematic design     dynamic design     optimal design    

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Experimental investigation of the influence on static and cyclic deformation of structural soft clay

CHEN Yunmin, CHEN Yingping, HUANG Bo

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4,   Pages 422-429 doi: 10.1007/s11709-007-0057-4

Abstract: This paper presents the experimental results performed to study the static and cyclic deformation behavior of undisturbed and remolded soft clays sampling from Xiaoshan. The consolidation tests indicated that the vertical strains of

Keywords： consolidation     deformation     experimental     undisturbed    

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Synthesis, characterization and assessment thermal properties of clay based nanopigments

Mohammad Banimahd KIEVANI, Milad EDRAKI

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 1,   Pages 40-45 doi: 10.1007/s11705-015-1505-7

Abstract: Nano-clay based pigments (NCP) are new type of pigments composed of organic dyes and layered silicate-clay

Keywords： nanopigment     layered silicate     cationic dye     thermal properties    

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Ultimate bearing capacity of strip footing resting on clay soil mixed with tire-derived aggregates

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 1016-1024 doi: 10.1007/s11709-021-0751-7

Abstract: This study investigated the use of recycled tire-derived aggregate (TDA) mixed with kaolin as a method of increasing the ultimate bearing capacity ( UBC) of a strip footing. Thirteen 1g physical modeling tests were prepared in a rigid box of 0.6 m × 0.9 m in plan and 0.6 m in height. During sample preparation, 0%, 20%, 40%, or 60% (by weight) of powdery, shredded, small-sized granular (G 1–4 mm) or large-sized granular (G 5–8 mm) TDA was mixed with the kaolin. A strip footing was then placed on the stabilized kaolin and was caused to fail under stress-controlled conditions to determine the UBC. A rigorous 3D finite element analysis was developed in Optum G-3 to determine the UBC values based on the experimental test results. The experimental results showed that, except for the 20% powdery TDA, the TDA showed an increase in the UBC of the strip footing. When kaolin mixed with 20% G (5–8 mm), the UBC showed a threefold increase over that for the unreinforced case. The test with 20% G (1–4 mm) recorded the highest subgrade modulus. It was observed that the UBC calculated using finite element modeling overestimated the experimental UBC by an average of 9%.

Keywords： kaolin     physical modeling tests     stabilization     numerical modeling    

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Optimized porous clay heterostructure for removal of acetaldehyde and toluene from indoor air

Pu ZHAO,Lizhong ZHU

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 219-228 doi: 10.1007/s11783-014-0760-z

Abstract: In this study, a series of new porous clay heterostructure (PCH) adsorbents with various ratios of micropores

Keywords： porous clay heterostructure     volatile organic compounds     adsorption     adsorbent     indoor air    

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Title Author Date Type Operation

Evaluation of the stability of terraced slopes in clayey gravel soil using a novel numerical technique

Journal Article

Optimal design of a linkage–cam mechanism-based redundantly actuated parallel manipulator

Journal Article

Nonlinear dynamic behaviour of a cam mechanism with oscillating roller follower in presence of profile

Walha LASSAAD, Tounsi MOHAMED, Driss YASSINE, Chaari FAKHER, Fakhfakh TAHER, Haddar MOHAMED

Journal Article

Bearing and uplift capacities of under-reamed piles in soft clay underlaid by stiff clay using lower-bound

Mantu MAJUMDER, Debarghya CHAKRABORTY

Journal Article

Selecting and prioritizing key factors for CAD/CAM software in small- and medium-sized enterprises using

Ghulam ZAKRIA, Zailin GUAN, Yasser RIAZ, Mirza JAHANZAIB, Anwar KHAN,

Journal Article

Research and Development of CAD/CAPP/CAM Integrated System

Wei Erwei,Liang Muyang,Yang Ping

Journal Article

Model testing of tripod caisson foundations in silty clay subjected to eccentric lateral loads

Journal Article

Behavior of compacted clay-concrete interface

R. R .SHAKIR, Jungao ZHU

Journal Article

Principle and curve of planetary indexing cam mechanisms

LIU Ming-tao, ZHANG Ce, YANG Yu-hu

Journal Article

Analysis of cement-treated clay behavior by micromechanical approach

Dong-Mei ZHANG, Zhen-Yu YIN, Pierre-Yves HICHER, Hong-Wei HUANG

Journal Article

the improvement design of dynamic characteristics for the roller follower of a variable-speed plate cam

Hui Ching FAN, Hong Sen YAN

Journal Article

Experimental investigation of the influence on static and cyclic deformation of structural soft clay

CHEN Yunmin, CHEN Yingping, HUANG Bo

Journal Article

Synthesis, characterization and assessment thermal properties of clay based nanopigments

Mohammad Banimahd KIEVANI, Milad EDRAKI

Journal Article

Ultimate bearing capacity of strip footing resting on clay soil mixed with tire-derived aggregates

Journal Article

Optimized porous clay heterostructure for removal of acetaldehyde and toluene from indoor air

Pu ZHAO,Lizhong ZHU

Journal Article