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Acoustic emissions evaluation of the dynamic splitting tensile properties of steel fiber reinforced concrete

Frontiers of Structural and Civil Engineering   Pages 1341-1356 doi: 10.1007/s11709-023-0988-4

Abstract: This study empirically investigated the influence of freeze–thaw cycling on the dynamic splitting tensileproperties of steel fiber reinforced concrete (SFRC).The dynamic splitting tensile damage characteristics were evaluated using acoustic emission (AE) parameter

Keywords： reinforced concrete     freeze–thaw cycling     Brazilian disc splitting test     acoustic emission technique     dynamicsplitting tensile acoustic emission properties    

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Influence of surface modified mixed metal oxide nanoparticles on the electrochemical and mechanical properties

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 1-14 doi: 10.1007/s11705-022-2176-9

Abstract: Electrochemical techniques were used to investigate the barrier properties of the synthesized PU–ATA/When the concentration of ATA/SiO2−TiO2 nanoparticles was 2 wt %, dynamic mechanicalanalysis revealed better mechanical properties.synthesised PU–ATA/SiO2–TiO2 nanocomposite provided excellent barrier and mechanical properties

Keywords： SiO2/TiO2 nanoparticle     nanocomposite coatings     dynamic mechanical analysis     electrochemical    

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Research on the Quasi-static and Dynamic Properties and Constitutive Relation of Carbon Fiber-reinforced

Zhang Tai,Wang Xiaojun,Wang Zhihai,Guo Yang,Wang Yuanbo

Strategic Study of CAE 2006, Volume 8, Issue 5,   Pages 63-68

Abstract:

The quasi-static and dynamic compression properties of carbon fiber-reinforced phenolic composite

Keywords： carbon fiber-reinforced phenolic composite     dynamic properties     viscoelasticity     constitutive model     time-temperature    

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Finite element analysis and dynamic test of dynamic properties of the cable stayed bridge using CFRP

Cai Dongsheng ,Liu Ronggui,Xu Fei,Zhou Shijin

Strategic Study of CAE 2010, Volume 12, Issue 2,   Pages 16-21

Abstract: bridge usingCFRP cables was firstly introduced ; then a three-dimensional computational finite element dynamicelements,shell elements and bar elements of above CFRP cable stayedbridge was modeled and a structure dynamicproperty analysis was put up; lastly a dynamic property test under ambient excitation was put up toanalyze the dynamic characteristics of the first cable-stayed bridge using CFRP cables in China, at theThe test and analysis results of this paper could provide reference for dynamic modeling and characteristic

Keywords： CFRP cable stayed bridge     dynamic property     finite element analysis     ambient excitation     dynamic test    

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New Formulas of Dynamic Characteristic of Hydrostatic Bearing and Its Testified Experiment

Meng Xinzhai,Yang Jianxi,Meng Zhaoyan

Strategic Study of CAE 2003, Volume 5, Issue 3,   Pages 62-66

Abstract: But gcx>d static performance can fully be displayed only under good dynamic performance of hydrostaticOn the basis of this transfer function, the new formulas of dynamic performances, namely the formulasof system stability, dynamic stiffness, nature frequency, maximum amplitude are derived.Therefore, there are many differences between their dynamic characteristics.

Keywords： dynamic properties     transfer functions     dynamic stiffness     resonance     frequency     hydrostatic bearing    

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Rosin side chain type catalyst-free vitrimers with high cross-link density, mechanical strength, and thermal stability

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1267-1279 doi: 10.1007/s11705-022-2291-7

Abstract: The prepared vitrimers exhibited good self-healing properties, excellent heat resistance (Td = 352 °C) as well as high mechanical properties (tensile strength of 46.75 MPa).Vitrimers can undergo dynamic transesterification reaction without external catalysts due to the autocatalyticthe added value of rosin, and provided a novel method for preparing rosin-based vitrimers with ideal properties

Keywords： vitrimers     rosin     catalyst-free     high mechanical properties     dynamic transesterification reaction    

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Dynamic Deformation Measurement of an Intact Single Cell via Microfluidic Chip with Integrated Liquid Article

Xu Du, Di Chang, Shingo Kaneko, Hisataka Maruyama, Hirotaka Sugiura, Masaru Tsujii, Nobuyuki Uozumi, Fumihito Arai

Engineering 2023, Volume 24, Issue 5,   Pages 94-101 doi: 10.1016/j.eng.2022.08.020

Abstract:

This paper reports a method to measure the mechanical properties of aThe mechanical properties of a single Synechocystis sp. strain PCC 6803 were measured in different osmoticThe liquid exchange was achieved in approximately 0.3–0.7 s, and the dynamic deformation of a singleMeasurements of two Young’s modulus values under alterable osmotic concentrations and the dynamicDynamic deformations of wild-type (WT) and mutant Synechocystis cells were investigated to reveal the

Keywords： Microfluidic chip     Mechanical properties     Dynamic deformation     Single cell     Liquid exchange    

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Effect of different high viscosity modifiers on rheological properties of high viscosity asphalt

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1390-1399 doi: 10.1007/s11709-021-0775-z

Abstract: The purpose of this study was to investigate the rheological properties of HVA prepared using differenthigh viscosity modifiers through conventional tests, Brookfield viscosity tests, dynamic shear rheometerThe 60°C dynamic viscosity results indicated TPS + rubber asphalt (TRA) had the excellent adhesion.

Keywords： high viscosity asphalt     rheological properties     rubber     modifier     viscosity    

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LINKING CROP WATER PRODUCTIVITY TO SOIL PHYSICAL, CHEMICAL AND MICROBIAL PROPERTIES

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 545-558 doi: 10.15302/J-FASE -2020349

Abstract: As the medium for crop growth, soils and their properties are important in affecting crop water productivityThis review examines the effects of soil physical, chemical, and microbial properties on crop water productivity

Keywords： crop water productivity     crop yield     soil chemical properties     soil microbial properties     soil physicalproperties     water consumption    

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Effect of earth reinforcement, soil properties and wall properties on bridge MSE walls

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1209-1221 doi: 10.1007/s11709-021-0764-2

Abstract: Mechanically stabilized earth (MSE) retaining walls are popular for highway bridge structures. They have precast concrete panels attached to earth reinforcement. The panels are designed to have some lateral movement. However, in some cases, excessive movement and even complete dislocation of the panels have been observed. In this study, 3-D numerical modeling involving an existing MSE wall was undertaken to investigate various wall parameters. The effects of pore pressure, soil cohesion, earth reinforcement type and length, breakage/slippage of reinforcement and concrete strength, were examined. Results showed that the wall movement is affected by soil pore pressure and reinforcement integrity and length, and unaffected by concrete strength. Soil cohesion has a minor effect, while the movement increased by 13–20 mm for flexible geogrid reinforced walls compared with the steel grid walls. The steel grid stresses were below yielding, while the geogrid experienced significant stresses without rupture. Geogrid reinforcement may be used taking account of slippage resistance and wall movement. If steel grid is used, non-cohesive soil is recommended to minimize corrosion. Proper soil drainage is important for control of pore pressure.

Keywords： mechanically stabilized earth walls     precast concrete panels     backfill soil     finite element modeling     earth reinforcement    

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Mechanical properties and microstructure of multilayer graphene oxide cement mortar

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 1058-1070 doi: 10.1007/s11709-021-0747-3

Abstract: This study reports on the effects of multilayer graphene oxide (MGO) on compressive strength, flexural strength, and microstructure of cement mortar. The cement mortar was prepared with type P. II. 52.5 Portland cement, standard sand, and MGO. Four mixes were prepared with inclusion of MGO (0%, 0.02%, 0.04%, and 0.06% by weight of cement). The testing result shows that the compressive of GO-cement mortar increased by 4.84%–13.42%, and the flexural strength increased by 4.37%–8.28% at 3 d. GO-cement mortar’s compressive strength and flexural strength at 7 d increased by 3.84%–12.08% and 2.54%–13.43%, respectively. MGO made little contribution to the increases of compressive strength and flexural strength of cement mortar at 28 d. The results of X-ray diffraction (XRD), scanning electron microscope (SEM), and nitrogen (N2) adsorption/desorption tests show that the types of hydration products and crystal grain size did not change after adding MGO. Still, it can help to improve the microstructure of the cement mortar via regulating hydration products and can provide more condensed cores to accelerate hydration. Furthermore, the regulating action of MGO for the microstructure of cement mortar at an early age was better than that at 28 d.

Keywords： graphene oxide     cement     mortar     mechanical properties     microstructure    

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Dynamic study on anti-collapse design for underground structures subjected to explosion

Yang Liming,Zhou Fenghua,Dong Xinlong,Wang Lili

Strategic Study of CAE 2011, Volume 13, Issue 3,   Pages 29-37

Abstract: The structural characteristics, the propagation of shock waves and material dynamic properties are notprecisely the protective structures against explosion, so that they must be improved.In this paper, dynamicproperties of concretes and their steel fiber reinforced concretes and the collapse behavior of undergroundFurthermore, the dynamic mechanism of anti-collapse design of underground structures subjected to explosive

Keywords： underground protective structure     concrete tensile properties     anti-collapse     stress waves    

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Dynamic material performance of cold-formed steel hollow sections: a state-of-the-art review

Cameron B. RITCHIE, Jeffrey A. PACKER, Xiao-Ling ZHAO, Amin HEIDARPOUR, Yiyi CHEN

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 2,   Pages 209-227 doi: 10.1007/s11709-017-0388-8

Abstract: material performance of cold-formed, carbon steel, hollow structural sections under impulsive (highly dynamic

Keywords： hollow structural sections     composites     impulsive loading     impact     blast     experimentation     analysis     material properties    

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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-particles, and have already been used in polymeric coatings to improve mechanical thermal and stability properties

Keywords： nanopigment     layered silicate     cationic dye     thermal properties    

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Aging properties and aging mechanism of activated waste rubber powder modified asphalt binder based onrheological properties and micro-characterization

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 625-636 doi: 10.1007/s11709-023-0938-1

Abstract: Subsequently, the aging properties and aging mechanism of activated waste rubber powder modified asphalt(ARMA) are investigated based on its rheological properties and micro-characterization.

Keywords： rubber powder modified asphalt     aging     mechanism     rheological     characterization    

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Title Author Date Type Operation

Acoustic emissions evaluation of the dynamic splitting tensile properties of steel fiber reinforced concrete

Journal Article

Influence of surface modified mixed metal oxide nanoparticles on the electrochemical and mechanical properties

Journal Article

Research on the Quasi-static and Dynamic Properties and Constitutive Relation of Carbon Fiber-reinforced

Zhang Tai,Wang Xiaojun,Wang Zhihai,Guo Yang,Wang Yuanbo

Journal Article

Finite element analysis and dynamic test of dynamic properties of the cable stayed bridge using CFRP

Cai Dongsheng ,Liu Ronggui,Xu Fei,Zhou Shijin

Journal Article

New Formulas of Dynamic Characteristic of Hydrostatic Bearing and Its Testified Experiment

Meng Xinzhai,Yang Jianxi,Meng Zhaoyan

Journal Article

Rosin side chain type catalyst-free vitrimers with high cross-link density, mechanical strength, and thermal stability

Journal Article

Dynamic Deformation Measurement of an Intact Single Cell via Microfluidic Chip with Integrated Liquid

Xu Du, Di Chang, Shingo Kaneko, Hisataka Maruyama, Hirotaka Sugiura, Masaru Tsujii, Nobuyuki Uozumi, Fumihito Arai

Journal Article

Effect of different high viscosity modifiers on rheological properties of high viscosity asphalt

Journal Article

LINKING CROP WATER PRODUCTIVITY TO SOIL PHYSICAL, CHEMICAL AND MICROBIAL PROPERTIES

Journal Article

Effect of earth reinforcement, soil properties and wall properties on bridge MSE walls

Journal Article

Mechanical properties and microstructure of multilayer graphene oxide cement mortar

Journal Article

Dynamic study on anti-collapse design for underground structures subjected to explosion

Yang Liming,Zhou Fenghua,Dong Xinlong,Wang Lili

Journal Article

Dynamic material performance of cold-formed steel hollow sections: a state-of-the-art review

Cameron B. RITCHIE, Jeffrey A. PACKER, Xiao-Ling ZHAO, Amin HEIDARPOUR, Yiyi CHEN

Journal Article

Synthesis, characterization and assessment thermal properties of clay based nanopigments

Mohammad Banimahd KIEVANI, Milad EDRAKI

Journal Article

Aging properties and aging mechanism of activated waste rubber powder modified asphalt binder based onrheological properties and micro-characterization

Journal Article