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3D fracture modelling and limit state analysis of prestressed composite concrete pipes

Pengfei HE, Yang SHEN, Yun GU, Pangyong SHEN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 165-175 doi: 10.1007/s11709-018-0484-4

Abstract: The structure is modelled fully in 3D using three-dimensional continuum elements for the concrete structure

Keywords： structures     limit state analysis     3D fracture modelling     prestressed composite pipes     reinforced concrete     three-pointbending test    

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The Double-K Fracture Parameter of Concrete for Non-Standard Three Point Bending Beam Specimens

Wu Zhimin,Xu Shilang,Ding Yining,Lu Xijing,Liu Jiayi,Ding Sheng gen

Strategic Study of CAE 2001, Volume 3, Issue 4,   Pages 76-81

Abstract:

Using the non-standard three-point bending beam specimens of concrete, which have the span/ heightIC and the critical crack tip opening displacement CTODc for the non-standard threepoint bending beams with different initial crack lengths and different spcimen heights are determined

Keywords： concrete     three-point bending beam     fracture parameter    

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The Loading Capacity of Three Point Bending BeamWith the Resistant Force of Cohesive Crack

Wang Limin,Xu Shi ,Ren Chuanbo

Strategic Study of CAE 2007, Volume 9, Issue 2,   Pages 30-35

Abstract: cohesive crack and ultimate tension stress.Through the double-K fracture criterion and fracture model of threepoint bending beam, the effect of crack cohesive force on the fracture process is analyzed.For maximumloading of bending beam with crack,the calculation approach is presented and the results are well fitted

Keywords： cohesive crack     three point bending beam     concrete     double唱K fracture parameters     structureloading capacity    

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Ductility improvement of GFRP-RC beams using precast confined concrete block in compression zone

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0968-8

Abstract: A control beam and four beams with different PCCBs were cast and tested under four-point bending conditions

Keywords： ductility     four-point bending test     glass fiber-reinforced polymer     precast confined concrete block    

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Bending failure performance of a shield tunnel segment based on full-scale test and numerical analysis

Frontiers of Structural and Civil Engineering   Pages 1033-1046 doi: 10.1007/s11709-023-0973-y

Abstract: This study focuses on the bending failure performance of a shield tunnel segment.A full-scale test was conducted to investigate deformation and failure characteristics.During the loading, the bending failure process can be divided into four stages: the elastic stage, workingA numerical model corresponding to the test was established using the elastoplastic damage constitutiveAfter a comparative analysis of the simulation and test results, parametric studies were performed to

Keywords： shield tunnel     bearing capacity     failure mechanism     segment reinforcement    

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Effect of asphalt thin beams mixed with three nominal maximum aggregate sizes in the bending beam rheometer

Chun-Hsing HO,María Francisca Martínez GONZÁLEZ,Cristina Pilar Martín LINARES

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 1-7 doi: 10.1007/s11709-016-0367-5

Abstract: this research is to evaluate an impact of asphalt mixture beams with varying sizes of aggregate in the BendingThe BBR test has following benefits: the equipment is cheaper, it uses smaller specimens, faster conditioningHowever some concerns have been raised: some consider that the size of the aggregate may affect the testAsphalt thin beams prepared with three different nominal maximum aggregate size (NMAS) (12.5mm, 9.5 mm, and 4.75 mm) were tested at three different temperatures (-18°C, -24°C, and -30°C).

Keywords： bending beam rheometer     thin beams     thermal cracking    

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Analysis of stiffness and flexural strength of a reinforced concrete beam using an invented reinforcement system

Nazim Abdul NARIMAN, Martin HUSEK, Ilham Ibrahim MOHAMMAD, Kaywan Othman AHMED, Diyako DILSHAD, Ibrahim KHIDR

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 378-389 doi: 10.1007/s11709-021-0706-z

Abstract: In this study, we conducted experimental tests on two specimens of reinforced concrete beams using a three-pointbending test to optimize the flexure and stiffness designs.specimen has an invented reinforcement system that consists of an ordinary reinforcement in addition to threeduring bending, and the stiffness were determined.was applied for both specimens using the LS-DYNA program, and the simulation results of the flexure test

Keywords： three-point flexure test     softening stage     flexural crack     flexural strain    

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Experimental and parametrical investigation of pre-stressed ultrahigh-performance fiber-reinforced concrete railway sleepers

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 411-428 doi: 10.1007/s11709-023-0928-3

Abstract: Under European standards, 35 UHPFRC sleepers are subjected to static bending tests at the center and

Keywords： pre-stressed concrete sleeper     ultrahigh performance fiber-reinforced concrete     pull-out test     staticbending test     steel fiber     aspect ratio     volume fraction    

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Development of rocking constraint device with vertical damping capacity for three-dimensional base-isolated

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 350-367 doi: 10.1007/s11709-022-0923-0

Abstract: A new rocking constraint device (RCD) is developed for three-dimensional (3D) base-isolated frame structuresThe test results show that the cylinder without orifices on its piston can provide the desired dampingComparisons of the test and theoretical results indicate that the errors of the proposed formulas for

Keywords： three-dimensional isolation     rocking behavior     rocking constraint device     replaceable damping component     sinusoidal test    

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Three-dimensional face point cloud hole-filling algorithm based on binocular stereo matching and a B-spline Research Articles

Yuan HUANG, Feipeng DA,whhbb@163.com

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 3,   Pages 398-408 doi: 10.1631/FITEE.2000508

Abstract: When obtaining three-dimensional (3D) face point cloud data based on structured light, factors relatedThe algorithm uses phase information acquired during raster projection to locate holes in the point cloud, simultaneously extracting boundary point cloud sets.By registering the face point cloud data using the stereo-matching algorithm and the data collected usingshowed that our model can accurately reproduce details and accurately restore complex shapes on the test

Keywords： Three-dimensional (3D) point cloud     Hole filling     Stereo matching     B-spline    

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A new meshless approach for bending analysis of thin plates with arbitrary shapes and boundary conditions

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 75-85 doi: 10.1007/s11709-021-0798-5

Abstract: An efficient and meshfree approach is proposed for the bending analysis of thin plates.coefficients of deflection expression could be determined through boundary conditions by using a collocation point

Keywords： plate     bending     meshless method     collocation    

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Three Dimensional Finite Element Analysis of Cracks for Deep Mixing Wall

Gao Wenhua,Wang Xiangqiu,Chen Qiunan,Zhang Zhimin

Strategic Study of CAE 2005, Volume 7, Issue 12,   Pages 88-91

Abstract: According to Mindlin plate theory, the thick plate model and three dimensional finite element model ofConsidering vertical and horizontal bending moment and tortile moment action together, equivalent bendingUsing the program developed by authors, spatial shape of horizontal displacements and equivalent bending

Keywords： cracks     deep mixing wall     thick plate     equivalent bending moment     three dimensional finite element    

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Improved prediction of pile bending moment and deflection due to adjacent braced excavation

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0961-2

Abstract: This study develops equations to predict the existing pile bending moment and deflection produced byIt is practically unfeasible to obtain measurement data; hence, artificial data for the bending momentexisting piles were produced from well-calibrated numerical analyses of hypothetical cases, using the three-dimensionalIn addition, the three-dimensional nature of the excavation work was characterized by considering theThe estimation results of the developed equations can provide satisfactory pile bending moment and deflection

Keywords： pile responses     excavation     prediction     deflection     bending moments    

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Measurement of dynamic fracture toughness and failure behavior for explosive mock materials

Pengwan CHEN, Zhongbin ZHOU, Shaopeng MA, Qinwei MA, Fenglei HUANG

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 292-295 doi: 10.1007/s11465-011-0237-8

Abstract:

In this work, a pre-cracked semi-circular shaped explosive simulant was loaded using a split Hopkinson pressure bar (SHPB). A high-speed camera was used to capture the deformation and fracture process of the specimen in situ. The digital images were processed using the digital image correlation (DIC) method. Next, full displacement and strain fields were obtained. The displacement vector field shows that the specimen fractured under tensile stress action. The strain field can be used to predict the crack propagation. Results show that the method of combined DIC and SHPB is effective to study the dynamic deformation and fracture behavior of explosive simulants. In addition, the specimen was loaded using a drop weight. The fracture toughness of the specimen was preliminary measured.

Keywords： image correlation     polymer bonded explosive simulant     split Hopkinson pressure bar (SHPB)     semicircular bendingtest     deformation     fracture toughness    

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Centrifuge model test on dynamic behavior of group-pile foundation with inclined piles and its numerical

ZHANG Feng, OKAWA Katsunori, KIMURA Makoto

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 233-241 doi: 10.1007/s11709-008-0033-7

Abstract: The test results are also simulated with elastoplastic dynamic finite element method, in which, not onlysectional force of piles, stress of ground, but also deformation of piles are calculated using a three-dimensional

Keywords： centrifuge     Different     three-dimensional elastoplastic     calculation     inclined    

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Title Author Date Type Operation

3D fracture modelling and limit state analysis of prestressed composite concrete pipes

Pengfei HE, Yang SHEN, Yun GU, Pangyong SHEN

Journal Article

The Double-K Fracture Parameter of Concrete for Non-Standard Three Point Bending Beam Specimens

Wu Zhimin,Xu Shilang,Ding Yining,Lu Xijing,Liu Jiayi,Ding Sheng gen

Journal Article

The Loading Capacity of Three Point Bending BeamWith the Resistant Force of Cohesive Crack

Wang Limin,Xu Shi ,Ren Chuanbo

Journal Article

Ductility improvement of GFRP-RC beams using precast confined concrete block in compression zone

Journal Article

Bending failure performance of a shield tunnel segment based on full-scale test and numerical analysis

Journal Article

Effect of asphalt thin beams mixed with three nominal maximum aggregate sizes in the bending beam rheometer

Chun-Hsing HO,María Francisca Martínez GONZÁLEZ,Cristina Pilar Martín LINARES

Journal Article

Analysis of stiffness and flexural strength of a reinforced concrete beam using an invented reinforcement system

Nazim Abdul NARIMAN, Martin HUSEK, Ilham Ibrahim MOHAMMAD, Kaywan Othman AHMED, Diyako DILSHAD, Ibrahim KHIDR

Journal Article

Experimental and parametrical investigation of pre-stressed ultrahigh-performance fiber-reinforced concrete railway sleepers

Journal Article

Development of rocking constraint device with vertical damping capacity for three-dimensional base-isolated

Journal Article

Three-dimensional face point cloud hole-filling algorithm based on binocular stereo matching and a B-spline

Yuan HUANG, Feipeng DA,whhbb@163.com

Journal Article

A new meshless approach for bending analysis of thin plates with arbitrary shapes and boundary conditions

Journal Article

Three Dimensional Finite Element Analysis of Cracks for Deep Mixing Wall

Gao Wenhua,Wang Xiangqiu,Chen Qiunan,Zhang Zhimin

Journal Article

Improved prediction of pile bending moment and deflection due to adjacent braced excavation

Journal Article

Measurement of dynamic fracture toughness and failure behavior for explosive mock materials

Pengwan CHEN, Zhongbin ZHOU, Shaopeng MA, Qinwei MA, Fenglei HUANG

Journal Article

Centrifuge model test on dynamic behavior of group-pile foundation with inclined piles and its numerical

ZHANG Feng, OKAWA Katsunori, KIMURA Makoto

Journal Article