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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: The development of a miniature triaxial apparatus is presented.micro-tomography (termed as X-ray μCT hereafter) facility and advanced image processing techniques, this apparatusThe apparatus allows for triaxial testing of a miniature dry sample with a size of (diameter heighttriaxial testing of a 0.4–0.8 mm Leighton Buzzard sand (LBS) under a constant confining pressure of 500The developed triaxial apparatus, in its combined use of X-ray μCT imaging techniques, is a powerful

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

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A new method of studying collapsibility of loess

Yuanqing ZHU , Zhenghan CHEN ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 305-311 doi: 10.1007/s11709-009-0040-3

Abstract: A new triaxial testing system that could control suction in wetting-induced collapsible tests was successfullyThe pedestal of the triaxial cell was made up of two parts, and the equipment not only could controlThe apparatus could measure volume change precisely and keep the deviator stress unvaried, as well asA triaxial collapsible testing procedure was described using the new apparatus for undisturbed collapsibleThe new triaxial apparatus was a useful facility to study the collapsible behavior of loess.

Keywords： triaxial apparatus for collapsible soils     controlled suction     pressure/volume controlled equipment     doubletriaxial collapsible test     single triaxial collapsible test    

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Crushed rocks stabilized with organosilane and lignosulfonate in pavement unbound layers: Repeated load triaxial

Diego Maria BARBIERI, Inge HOFF, Chun-Hsing HO

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 412-424 doi: 10.1007/s11709-021-0700-5

Abstract: The beneficial effect offered by the additives was thoroughly evaluated by performing repeated load triaxialFurthermore, a finite element model was created to simulate the repeated load triaxial test by implementing

Keywords： organosilane     lignosulfonate     crushed rocks     pavement unbound layers     repeated load triaxial test     finite    

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Behavior of dam concrete under biaxial compression-tension and triaxial compression-compression-tension

WANG Huailiang, SONG Yupu

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4,   Pages 323-328 doi: 10.1007/s11709-008-0043-5

Abstract: Specimens subjected to biaxial compression-tension (C-T) and triaxial compression-compression-tension

Keywords： requirement     wet-screened concrete     compression-tension     maximum aggregate     principal    

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A multi-probe micro-fabrication apparatus based on the friction-induced fabrication method

Zhijiang WU, Chenfei SONG, Jian GUO, Bingjun YU, Linmao QIAN

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4,   Pages 333-339 doi: 10.1007/s11465-013-0276-4

Abstract:

A novel multi-probe micro-fabrication apparatus was developed based on the friction-induced fabricationThe main parts of the apparatus include actuating device, loading system, and control system.As a low-cost and high efficiency fabrication device, the multi-probe micro-fabrication apparatus may

Keywords： friction-induced fabrication     silicon     surface texture     friction     multi-probe    

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Effect of cavity defect on the triaxial mechanical properties of high-performance concrete

Yanbin ZHANG; Zhe WANG; Mingyu FENG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 5,   Pages 600-614 doi: 10.1007/s11709-022-0821-5

Abstract: However, the behaviour of HPC with cavities under triaxial compression is not understood, especially

Keywords： high-performance concrete     cavity     conventional triaxial compression     pressurized liquid     modified power-law    

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Behavior of Concrete Under the Triaxial Compression

Yan Dongming,Lin Gao

Strategic Study of CAE 2007, Volume 9, Issue 6,   Pages 64-70

Abstract:

  Experimental tests on 10 mm cubic concrete specimens were carried out using the servo hydraulic testing machine.  Specimens subjected to equal constant confining pressures of 0, 4 MPa, 8 MPa, 12 MPa and 16 MPa respectively were conducted to investigate the deformation and strength characteristics of concrete.  In addition, strength properties of concrete under unequal confining pressures were also investigated. Based on the test results it was revealed that the ultimate strength increases dramatically with the increasing confining pressure and the strain at peak stress increases even more pronounced. With the increasing minor principal stresses, the enhancement effect of middle principal stresses on the ultimate strength became weak.  The complete stress- strain curves were obtained at different confining pressures.  By comparison with the current literature,  appropriate formulas of concrete strength and deformation were proposed for the engineering purpose.

Keywords： triaxial stress state     confining pressure     ultimate strength     deformation     concrete    

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Optimum design and preliminary experiments of a novel parallel end traction apparatus for upper-limb

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 726-746 doi: 10.1007/s11465-021-0651-5

Abstract: This paper introduces a novel parallel end traction apparatus (PETA) to supplement equipment selection

Keywords： parallel mechanism     upper-limb rehabilitation     singularity and workspace analyses     performance evaluation     optimum design    

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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: The deviatoric stress and volumetric strain caused by triaxial compression are calculated and then compared

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

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Near-infrared fluorescent probe for fast track of cyclooxygenase-2 in Golgi apparatus in cancer cells

Bhaskar Gurram, Miao Li, Jiangli Fan, Jingyun Wang, Xiaojun Peng

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 1,   Pages 41-52 doi: 10.1007/s11705-019-1796-1

Abstract: Cyclooxygenase-2 (COX-2) has been used as an excellent traceable biomarker, and exists maximally in Golgi apparatusSubcellular localization of the NB-C6-CCB preferentially points to the Golgi apparatus and increases

Keywords： cyclooxygenase-2     nile blue     CCB     Golgi apparatus     NIR imaging    

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A Breakthrough in Pressure Generation by a Kawai-Type Multi-Anvil Apparatus with Tungsten Carbide Anvils Review

Takayuki Ishii, Zhaodong Liu, Tomoo Katsura

Engineering 2019, Volume 5, Issue 3,   Pages 434-440 doi: 10.1016/j.eng.2019.01.013

Abstract:

Expansion of the pressure range of Kawai-type multi-anvil presses (KMAPs) with tungsten carbide (WC) anvils is called for, especially in the field of Earth science. However, no significant progress in pressure generation has been made for 40 years. Our recent studies have expanded the pressure generation of a KMAP with WC anvils to 65 GPa, which is the world record for high-pressure generation in this device and is more than 2.5 times higher than conventional pressure generation. We have also successfully generated pressures of about 50 GPa at high temperatures. This work reviews our recently developed technology for high-pressure generation. High-pressure generation at room temperature and at high temperature was attained by integration of the following techniques: ① a precisely aligned guide-block system, ② a high degree of hardness of the second-stage anvils, ③ tapering of the second-stage anvil faces, ④ a high-pressure cell consisting of materials with a high bulk modulus, and ⑤ high thermal insulation of the furnace. Our high-pressure technology will facilitate investigation of the phase stability and physical properties of materials under the conditions of the upper part of the lower mantle, and will permit the synthesis and characterization of novel materials.

Keywords： High pressure     Multi-anvil apparatus     Tungsten carbide anvil     Sintered diamond anvil     Lower mantle    

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Hydraulic fracturing pressure of concentric double-layered cylinder in cohesive soil

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 937-947 doi: 10.1007/s11709-021-0754-4

Abstract: Then, several triaxial hydraulic fracturing tests were carried out to validate the analytical solution

Keywords： hydraulic fracturing pressure     layered     cavity expansion theory     triaxial fracturing test     cohesive soil    

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Performance of fiber reinforced clayey sand composite

Amin CHEGENIZADEH, Hamid NIKRAZ

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 147-152 doi: 10.1007/s11709-012-0158-6

Abstract: Triaxial consolidated undrained (CU) tests were carried out to investigate behavior of the composite

Keywords： triaxial     consolidated undrained (CU)     fiber     strength    

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Effects of natural zeolite and sulfate ions on the mechanical properties and microstructure of plastic concrete

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 86-98 doi: 10.1007/s11709-021-0793-x

Abstract: relatively abundant mineral resource and in this research, the microstructure, unconfined strength, triaxial

Keywords： plastic concrete     sulfate resistance     natural zeolite     triaxial compression test     SEM     permeability    

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Effect of size on biaxial flexural strength for cement-based materials by using a triangular plate method

Hakan T TURKER

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 8,   Pages 1017-1028 doi: 10.1007/s11709-022-0871-8

Abstract: The effect of size on the biaxial flexural strength (BFS) of Portland cement mortar was investigated by using the recently proposed triangular plate method (TPM). An experimental program was conceived to study the size effect by keeping a constant water-cement ratio of 0.485, cement-sand ratio of 1:2.75, and using unreinforced triangular mortar plates of five different thicknesses and seven different side lengths. The BFS of the produced specimens was tested, and variations of BFS depending on specimen thickness and side length were determined. The results indicated that increases in triangular plate specimen side length and specimen thickness led to a decrease in the BFS of Portland cement mortar. The effect of specimen length increase on BFS was more significant than on the effect of the specimen thickness. The variations in specimens’ thickness indicated a deterministic Type I size effect, while the variations in specimens’ length showed an energetic-statistical Type I size effect.

Keywords： testing     apparatus & methods     plain concrete     tensile properties     biaxial flexural strength     triangular    

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Title Author Date Type Operation

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

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

Journal Article

A new method of studying collapsibility of loess

Yuanqing ZHU , Zhenghan CHEN ,

Journal Article

Crushed rocks stabilized with organosilane and lignosulfonate in pavement unbound layers: Repeated load triaxial

Diego Maria BARBIERI, Inge HOFF, Chun-Hsing HO

Journal Article

Behavior of dam concrete under biaxial compression-tension and triaxial compression-compression-tension

WANG Huailiang, SONG Yupu

Journal Article

A multi-probe micro-fabrication apparatus based on the friction-induced fabrication method

Zhijiang WU, Chenfei SONG, Jian GUO, Bingjun YU, Linmao QIAN

Journal Article

Effect of cavity defect on the triaxial mechanical properties of high-performance concrete

Yanbin ZHANG; Zhe WANG; Mingyu FENG

Journal Article

Behavior of Concrete Under the Triaxial Compression

Yan Dongming,Lin Gao

Journal Article

Optimum design and preliminary experiments of a novel parallel end traction apparatus for upper-limb

Journal Article

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

Shixiong SONG, Qicheng SUN, Feng JIN, Chuhan ZHANG

Journal Article

Near-infrared fluorescent probe for fast track of cyclooxygenase-2 in Golgi apparatus in cancer cells

Bhaskar Gurram, Miao Li, Jiangli Fan, Jingyun Wang, Xiaojun Peng

Journal Article

A Breakthrough in Pressure Generation by a Kawai-Type Multi-Anvil Apparatus with Tungsten Carbide Anvils

Takayuki Ishii, Zhaodong Liu, Tomoo Katsura

Journal Article

Hydraulic fracturing pressure of concentric double-layered cylinder in cohesive soil

Journal Article

Performance of fiber reinforced clayey sand composite

Amin CHEGENIZADEH, Hamid NIKRAZ

Journal Article

Effects of natural zeolite and sulfate ions on the mechanical properties and microstructure of plastic concrete

Journal Article

Effect of size on biaxial flexural strength for cement-based materials by using a triangular plate method

Hakan T TURKER

Journal Article