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Key technical innovations in the construction of Baihetan Hydropower Station Project

Frontiers of Engineering Management 2023, Volume 10, Issue 2,   Pages 367-372 doi: 10.1007/s42524-023-0253-5

Abstract: Key technical innovations in the construction of Baihetan Hydropower Station Project

Keywords： ultra-high arch dam     columnar jointed basalt     low-heat cement concrete     temperature controlled crackprevention     million-kilowatt unit     intelligent construction    

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Temperature control and crack prevention technology for concrete on ship lift tower of Three Gorges Project

Yang Fuying,Feng Xiaolin,Li Xiaoping

Strategic Study of CAE 2013, Volume 15, Issue 9,   Pages 55-58

Abstract: And its concrete temperature is greatly influenced by the ambient temperature.Thus, the concrete temperature control of it is extremely difficult.and time of cooling water, scientifically adjusting the external ambient temperature, introducing newTemperature control and crack prevention technology for concrete in ship lift tower of Three Gorges Projecthas important reference value to research the technical level of temperature control measures for ship

Keywords： ship lift tower     concrete     temperature control     crack prevention     Three Gorges Project ship lift    

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Intelligent optimization of temperature control and crack prevention measures for sluice pier concrete

Huang Yaoying,Ding Yuemei,Lv Xiaoman and Xu Bailin

Strategic Study of CAE 2014, Volume 16, Issue 3,   Pages 59-63

Abstract:

To the sluice pier concrete，temperature control and crack prevention is a complex and multi- factorproblem of system optimization related to temperature control measures and material parameters.This paper tries optimal temperature control measures with the known concrete material thermodynamicstemperature control measures，takes the uniform design principle to have the temperature control parametercombination，adopts the pipe cooling finite element method（FEM）to simulate and analyze the temperature

Keywords： sluice pier     superficial heat preservation     water cooling     pouring temperature     intelligent optimization    

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Crack detection for wading-concrete structures using water irrigation and electric heating

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 368-377 doi: 10.1007/s11709-022-0926-x

Abstract: The heat-transfer rate near a crack is related to the flow velocity of the fluid in the crack.rate in the crack area will increase because of the convective heat-transfer effect near the crack.The proposed mobile crack-monitoring system consists of a heating system, temperature-measurement systemThe effects of the crack width, leakage flow, and relative positions of the heat source and crack on, but not quantify the crack width.

Keywords： structural health monitoring     underwater concrete structure     fiber Bragg grating     crack detection     temperature    

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Dynamic crack propagation in plates weakened by inclined cracks: an investigation based on peridynamics

A. SHAFIEI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 527-535 doi: 10.1007/s11709-018-0450-1

Abstract: In this paper by using peridynamics, the crack path for inclined crack under dynamic loading were investigatedThe peridynamics solution for this problem represents the main features of dynamic crack propagationsuch as crack bifurcation.In addition, the influence of geometry on inclined crack growth is studied.

Keywords： peridynamics     inclined crack     dynamic fracture     crack branching    

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Synthesis and characterization of biocompatible polyurethanes for controlled release of hydrophobic and

Juichen YANG,Hong CHEN,Yuan YUAN,Debanjan SARKAR,Jie ZHENG

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 4,   Pages 498-510 doi: 10.1007/s11705-014-1451-9

Abstract: Design of biocompatible and biodegradable polymer systems for sustained and controlled release of bioactiveHere, we designed, synthesized, and characterized four polyurethane carrier systems for controlled release

Keywords： phase structure     degradation     polyurethanes     controlled release     drug delivery    

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Peridynamics versus XFEM: a comparative study for quasi-static crack problems

Jinhai ZHAO, Hesheng TANG, Songtao XUE

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 548-557 doi: 10.1007/s11709-017-0434-6

Abstract: However, capturing of complex mixed-mode crack patterns has been proven to be difficult with PD.extended finite element method (XFEM) is one of the most popular methods for fracture which allows crackThe first example is crack propagation in a double notched specimen under uniaxial tension with differentcrack spacings in loading direction.

Keywords： XFEM     peridynamic     bilateral crack     parallel double cracks     nonlocal theory    

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Correlation between tension softening relation and crack extension resistance in concrete

Xiufang ZHANG , Shilang XU ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 323-329 doi: 10.1007/s11709-009-0041-2

Abstract: Changes of the material fracture energy consumption with crack propagation can be described by a crackextension resistance curve, one of the fundamental fracture criteria in crack mechanics.observation of the fracture behavior in concrete was used to develop a new fracture criterion, the crackextension resistance curve, to analyze crack propagation during the entire concrete fracture processfracture process zone ahead of the stress-free crack tip.

Keywords： concrete     fracture process zone     crack extension GR resistance     tension softening curve    

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Fracture resistance on aggregate bridging crack in concrete

ZHANG Xiufang, XU Shilang

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 1,   Pages 63-70 doi: 10.1007/s11709-007-0006-2

Abstract: Utilizing the obtained load against crack opening displacement curve, the value of G at any crack extensionas well as the change of G with the crack extension is examined.It is found that G will firstly increase with the development of crack and then stay constant once theinitial crack tip opening displacement reaches the characteristic crack opening displacement w0.The results reveal that the values of G of different specimens at any crack propagation are strongly
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Stability and dynamics of rotor system with 45° slant crack on shaft

Yanli LIN, Xiaohui SI, Fulei CHU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 203-213 doi: 10.1007/s11465-011-0131-4

Abstract:

Crack on a shaft is one of the common damages in a rotor system.slant crack on the rotor system.is larger than that with a transverse crack when the two types of crack have the same depth and thetorsional excitation are analyzed by considering opening and closing of the crack.on a shaft and can be used for the detection of the slant crack on a shaft.

Keywords： rotor dynamics     slant crack     stability     torsional excitation     open and close    

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Study on the cohesion and adhesion of hot-poured crack sealants

Meng GUO, Yiqiu TAN, Xuesong DU, Zhaofeng LV

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3,   Pages 353-359 doi: 10.1007/s11709-017-0400-3

Abstract: Filling crack sealant is a main method to repair cracking of pavement.The effect of moisture on low-temperature performance of crack sealant was also be evaluated by conductingResults show that with the decrease of temperature, the cohesion force of crack sealant increases significantlyof crack sealant.and damage the durability of crack sealant.

Keywords： crack sealant     concrete pavement     cohesion     adhesion     moisture damage    

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Feasibility of crack free reinforced concrete bridge deck from materials composition perspective: a state

Mahdi AREZOUMANDI

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 1,   Pages 91-103 doi: 10.1007/s11709-015-0274-1

Abstract: To design an appropriate mixture for crack free bridge deck, it is important to study previous researches

Keywords： bridge deck     crack     fiber     shrinkage     shrinkage reducing admixture    

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Concurrent fatigue crack growth simulation using extended finite element method

Zizi LU, Yongming LIU,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3,   Pages 339-347 doi: 10.1007/s11709-010-0078-2

Abstract: In this paper, a concurrent simulation framework for fatigue crack growth analysis is proposed usingscale model for fatigue mechanism analysis and the extended finite element method (X-FEM) for fatigue crackThe X-FEM greatly facilitates crack growth simulation without remeshing requirements ahead of the cracktime scale fatigue model is integrated into the numerical simulation algorithm for concurrent fatigue crack

Keywords： small time scale model     extended finite element method (X-FEM)     crack growth     multiaxial    

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Some remarks on the engineering application of the fatigue crack growth approach under nonzero mean loads

Jorge Alberto Rodriguez DURAN,Ronney Mancebo BOLOY,Rafael Raider LEONI

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 3,   Pages 255-262 doi: 10.1007/s11465-015-0342-1

Abstract:

The well-known fatigue crack growth (FCG) curves are two-parameter dependents.the mathematical representation of these curves should be integrated between the initial and final crackK is almost always selected and, in these conditions, considered as the crack driving forceNumerical examples of crack growth analysis for cracks growing under nominal stresses of constant amplitudeThe resulting curves of crack size versus number of cycles (a vs.

Keywords： fatigue crack propagation modeling     life prediction     mean stress effects    

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Stress field near circular-arc interface crack tip based on electric saturation concept

Longchao DAI, Xinwei WANG

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 320-325 doi: 10.1007/s11465-009-0042-9

Abstract: the framework of nonlinear electroelasticity, the anti-plane problem of a circular-arc interfacial crackthe complex potentials in both the matrix and the inclusion, and the stress intensity factor at the crack

Keywords： piezoelectric material     arc crack     strip saturation     stress intensity factor    

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Title Author Date Type Operation

Key technical innovations in the construction of Baihetan Hydropower Station Project

Journal Article

Temperature control and crack prevention technology for concrete on ship lift tower of Three Gorges Project

Yang Fuying,Feng Xiaolin,Li Xiaoping

Journal Article

Intelligent optimization of temperature control and crack prevention measures for sluice pier concrete

Huang Yaoying,Ding Yuemei,Lv Xiaoman and Xu Bailin

Journal Article

Crack detection for wading-concrete structures using water irrigation and electric heating

Journal Article

Dynamic crack propagation in plates weakened by inclined cracks: an investigation based on peridynamics

A. SHAFIEI

Journal Article

Synthesis and characterization of biocompatible polyurethanes for controlled release of hydrophobic and

Juichen YANG,Hong CHEN,Yuan YUAN,Debanjan SARKAR,Jie ZHENG

Journal Article

Peridynamics versus XFEM: a comparative study for quasi-static crack problems

Jinhai ZHAO, Hesheng TANG, Songtao XUE

Journal Article

Correlation between tension softening relation and crack extension resistance in concrete

Xiufang ZHANG , Shilang XU ,

Journal Article

Fracture resistance on aggregate bridging crack in concrete

ZHANG Xiufang, XU Shilang

Journal Article

Stability and dynamics of rotor system with 45° slant crack on shaft

Yanli LIN, Xiaohui SI, Fulei CHU

Journal Article

Study on the cohesion and adhesion of hot-poured crack sealants

Meng GUO, Yiqiu TAN, Xuesong DU, Zhaofeng LV

Journal Article

Feasibility of crack free reinforced concrete bridge deck from materials composition perspective: a state

Mahdi AREZOUMANDI

Journal Article

Concurrent fatigue crack growth simulation using extended finite element method

Zizi LU, Yongming LIU,

Journal Article

Some remarks on the engineering application of the fatigue crack growth approach under nonzero mean loads

Jorge Alberto Rodriguez DURAN,Ronney Mancebo BOLOY,Rafael Raider LEONI

Journal Article

Stress field near circular-arc interface crack tip based on electric saturation concept

Longchao DAI, Xinwei WANG

Journal Article