Resource Type

Journal Article 37

Year

2023 2

2022 1

2021 5

2020 2

2019 3

2018 2

2017 1

2016 1

2015 1

2013 2

2011 2

2009 4

2008 1

2007 2

2006 2

2005 2

2003 2

open ︾

Keywords

cracks 6

XFEM 2

ductility 2

3-D cracks 1

30o-120o 1

bacillus subtilis 1

J-R curve 1

Alternate vertex updating 1

Bridges 1

Concrete bridge deck 1

Corner-aware neighborhoods 1

Corner-turning behavior 1

Crack detection 1

Cracking 1

Crowd simulation 1

Deep learning 1

DeepLabv3+ 1

Degradation 1

FBG 1

open ︾

Search scope:

排序： Display mode:

Detection for transverse corner cracks of steel plates’ surface using wavelet

Qiong ZHOU, Qi AN

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2,   Pages 224-227 doi: 10.1007/s11465-009-0017-x

Abstract: An algorithm is presented for detecting transverse corner cracks at a steel plate surface using waveletAccording to characteristics of transverse corner crack images, the wavelet transform is used for theThe experiment shows that transverse corner cracks of steel plates can be more effectively extracted

Keywords： transverse corner cracks     defect detection     multi-scales wavelet analysis    

HTML PDF Collect

Initial life of corner fine cracks on the P60 rails

Shi Rong,Fan Zhiyi,He Yuelei

Strategic Study of CAE 2008, Volume 10, Issue 8,   Pages 65-68

Abstract: Outer rails on curve railway have corner fine cracks on the inner flank, and some cracks evaluate downInitially corner fine cracks expand slowly on the early stage, with the times of fatigue loads increasingspeed rate dh/dN breaks.The times of fatigue loads at turn over point is defined as the initial life of cornerfine cracks.

Keywords： rail     corner fine cracks     fatigue cracks     crack depth expanding speed     initial life    

HTML PDF Collect

Microbial self-healing of cracks in cement-based materials and its influencing factors

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0986-6

Abstract: Cracks can reduce service life because the transport of harmful substances can cause corrosion damagemethod, numerical modeling, and ultrasonic method can be employed to identify the self-healing effect of cracksThe results showed that microbial self-healing agents can repair cracks in cement-based materials inThe difficulties and future development of self-healing cracks were analyzed.With the development of intelligent building materials, self-healing cracks have become the focus of

Keywords： cement-based materials     cracks     microbial self-healing agent     mechanism     intelligent building materials    

HTML PDF Collect

Shadow obstacle model for realistic corner-turning behavior in crowd simulation

Gao-qi HE,Yi JIN,Qi CHEN,Zhen LIU,Wen-hui YUE,Xing-jian LU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 3,   Pages 200-211 doi: 10.1631/FITEE.1500253

Abstract: This paper describes a novel model known as the shadow obstacle model to generate a realistic corner-turningfrom the observation that people tend to choose a safer route rather than a shorter one when turning a cornerTo calculate a safer route, an optimization method is proposed to generate the corner-turning rule thatWe demonstrate that our model produces a more realistic corner-turning behavior by comparison with real

Keywords： Corner-turning behavior     Crowd simulation     Safety awareness     Rule-based model    

HTML PDF Collect

Effect of axial load and transverse reinforcements on the seismic performance of reinforced concrete

Mounir Ait BELKACEM, Hakim BECHTOULA, Nouredine BOURAHLA, Adel Ait BELKACEM

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 831-851 doi: 10.1007/s11709-018-0513-3

Abstract: is to assess the seismic performance of reinforced concrete columns under different axial load and transverseEffects of variable axial load ratio and transverse reinforcement ratio on the seismic performance of

Keywords： reinforced concrete columns     axial load     transverse reinforcement     ductility    

HTML PDF Collect

Fatigue crack growth simulations of 3-D linear elastic cracks under thermal load by XFEM

Himanshu PATHAK,Akhilendra SINGH,I.V. SINGH,S. K. YADAV

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4,   Pages 359-382 doi: 10.1007/s11709-015-0304-z

Abstract: This paper deals with the fatigue crack growth simulations of three-dimensional linear elastic cracksDifferent crack geometries such as planer, non-planer and arbitrary spline shape cracks are simulated

Keywords： 3-D cracks     fatigue life     Paris law     thermal load     XFEM    

HTML PDF Collect

Investigation of Generalized SIFs of cracks in 3D piezoelectric media under various crack-face conditions

Jaroon RUNGAMORNRAT, Bounsana CHANSAVANG, Weeraporn PHONGTINNABOOT, Chung Nguyen VAN

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 280-298 doi: 10.1007/s11709-019-0586-7

Abstract: and the permittivity of a medium inside the crack gap on intensity factors of planar and non-planar cracksThe mode-I stress intensity factors ( ) for two representative non-planar cracks under different crack-faceIn addition, for impermeable and semi-permeable non-planar cracks treated depends strongly on the electricfield whereas those of impermeable, permeable, and semi-permeable penny-shaped cracks are identicaland dependent on the electric field for the penny-shaped crack and the two representative non-planar cracks

Keywords： crack-face conditions     intensity factors     non-flat cracks     permittivity     piezoelectric media     SGBEM    

HTML PDF Collect

Experimental Study on Temperature Distribution and Response Behaviors of Steel Element under Corner Fire

Chen Changkun,Yao Bin,Yang Yun,Cai Xin,Zhang Heping,Wan Yutian

Strategic Study of CAE 2005, Volume 7, Issue 9,   Pages 70-75

Abstract:

By using ISO9705 Room/Corner Fire Test Rig, thin steel tubes were tested.The response behaviors of steel element under thermal-mechanical coupling effect in a simulated cornerEffects of the temperature elevation and distribution of the steel element under corner fire conditionsIndeed, this non-uniform temperature distribution caused by the corner fire is more dangerous to the

Keywords： ISO9705 Room/Corner Fire Test Rig     steel element     corner fire     temperature distribution    

HTML PDF Collect

Fast detection algorithm for cracks on tunnel linings based on deep semantic segmentation

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 732-744 doi: 10.1007/s11709-023-0965-y

Abstract: deep semantic segmentation called LC-DeepLab is proposed for detecting the trends and geometries of cracksThe experimental results show that LC-DeepLab can accurately segment and highlight cracks from tunnel

Keywords： tunnel engineering     crack segmentation     fast detection     DeepLabv3+     feature fusion     attention mechanism    

HTML PDF Collect

Investigating the influence of delamination on the stiffness of composite pipes under compressive transverse

Sattar MALEKI, Roham RAFIEE, Abolfazl HASANNIA, Mohammad Reza HABIBAGAHI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1316-1323 doi: 10.1007/s11709-019-0555-1

Abstract: The effect of delamination on the stiffness reduction of composite pipes is studied in this research. The stiffness test of filament wound composite pipes is simulated using cohesive zone method. The modeling is accomplished to study the effect of the geometrical parameters including delamination size and its position with respect to loading direction on stiffness of the composite pipes. At first, finite element results for stiffness test of a perfect pipe without delamination are validated with the experimental results according to ASTM D2412. It is seen that the finite element results agree well with experimental results. Then the finite element model is developed for composite pips with delaminated areas with different primary shapes. Thus, the effect of the size of delaminated region on longitudinal and tangential directions and also its orientation with respect to loading direction on delamination propagation and stiffness reduction of the pipes is assessed.

Keywords： delamination     composite pipes     stiffness test     cohesive zone method    

HTML PDF Collect

Ductile extension of 3-D external circumferential cracks in pipe structures

Wuchao YANG, Xudong QIAN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 294-303 doi: 10.1007/s11709-011-0115-9

Abstract: This study investigates the ductile fracture resistance of 3-D external circumferential cracks in theaxi-symmetric model provides conservative estimations of the fracture resistance for 3-D circumferential cracks

Keywords： ductile fracture     computational cell method     G-T model     J-R curve    

HTML PDF Collect

Progress in Study of Standard Room/Corner Fire Test of Lining Materials on Enclosure

Yang Yun,Zhang Heping,Liu Jiyang

Strategic Study of CAE 2003, Volume 5, Issue 4,   Pages 55-60

Abstract:

Standard room/corner fire test is a full-scale reaction-to-fire research method.This paper introduces the principles and experimental devices of ISO 9705 room/corner fire test, and

Keywords： lining materials     full-scale     ISO 9705     room/corner fire test    

HTML PDF Collect

Effect of calcium lactate on compressive strength and self-healing of cracks in microbial concrete

Kunamineni VIJAY, Meena MURMU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 515-525 doi: 10.1007/s11709-018-0494-2

Abstract: The influence of this addition on compressive strength, self-healing capability of cracks is highlighted

Keywords： calcium lactate     bacillus subtilis     compressive strength     self-healing of cracks    

HTML PDF Collect

Fracture behavior of two non-symmetrical collinear cracks emanating from an elliptical hole in a piezoelectric

Junhong GUO, Zixing LU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 296-300 doi: 10.1007/s11465-011-0236-9

Abstract: Stroh-type formalism and the technique of conformal mapping, the problem of two non-symmetrical collinear cracksand anti-plane mechanical loading, which allowed us to take the electric field inside the hole and cracks

Keywords： piezoelectric materials     elliptical hole     semi-permeable crack     energy release rate     analytic solution    

HTML PDF Collect

Detecting large-scale underwater cracks based on remote operated vehicle and graph convolutional neural

Wenxuan CAO; Junjie LI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 11,   Pages 1378-1396 doi: 10.1007/s11709-022-0855-8

Abstract: It is of great significance to quickly detect underwater cracks as they can seriously threaten the safetyResearch to date has mainly focused on the detection of above-water-level cracks and hasn’t consideredthe large scale cracks.

Keywords： underwater cracks     remote operated vehicle     image stitching     image segmentation     graph convolutional    

HTML PDF Collect

Title Author Date Type Operation

Detection for transverse corner cracks of steel plates’ surface using wavelet

Qiong ZHOU, Qi AN

Journal Article

Initial life of corner fine cracks on the P60 rails

Shi Rong,Fan Zhiyi,He Yuelei

Journal Article

Microbial self-healing of cracks in cement-based materials and its influencing factors

Journal Article

Shadow obstacle model for realistic corner-turning behavior in crowd simulation

Gao-qi HE,Yi JIN,Qi CHEN,Zhen LIU,Wen-hui YUE,Xing-jian LU

Journal Article

Effect of axial load and transverse reinforcements on the seismic performance of reinforced concrete

Mounir Ait BELKACEM, Hakim BECHTOULA, Nouredine BOURAHLA, Adel Ait BELKACEM

Journal Article

Fatigue crack growth simulations of 3-D linear elastic cracks under thermal load by XFEM

Himanshu PATHAK,Akhilendra SINGH,I.V. SINGH,S. K. YADAV

Journal Article

Investigation of Generalized SIFs of cracks in 3D piezoelectric media under various crack-face conditions

Jaroon RUNGAMORNRAT, Bounsana CHANSAVANG, Weeraporn PHONGTINNABOOT, Chung Nguyen VAN

Journal Article

Experimental Study on Temperature Distribution and Response Behaviors of Steel Element under Corner Fire

Chen Changkun,Yao Bin,Yang Yun,Cai Xin,Zhang Heping,Wan Yutian

Journal Article

Fast detection algorithm for cracks on tunnel linings based on deep semantic segmentation

Journal Article

Investigating the influence of delamination on the stiffness of composite pipes under compressive transverse

Sattar MALEKI, Roham RAFIEE, Abolfazl HASANNIA, Mohammad Reza HABIBAGAHI

Journal Article

Ductile extension of 3-D external circumferential cracks in pipe structures

Wuchao YANG, Xudong QIAN

Journal Article

Progress in Study of Standard Room/Corner Fire Test of Lining Materials on Enclosure

Yang Yun,Zhang Heping,Liu Jiyang

Journal Article

Effect of calcium lactate on compressive strength and self-healing of cracks in microbial concrete

Kunamineni VIJAY, Meena MURMU

Journal Article

Fracture behavior of two non-symmetrical collinear cracks emanating from an elliptical hole in a piezoelectric

Junhong GUO, Zixing LU

Journal Article

Detecting large-scale underwater cracks based on remote operated vehicle and graph convolutional neural

Wenxuan CAO; Junjie LI

Journal Article