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Structural optimization of filament wound composite pipes

Roham RAFIEE; Reza SHAHZADI; Hossein SPERESP

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 8,   Pages 1056-1069 doi: 10.1007/s11709-022-0868-3

Abstract: An optimization procedure is developed for obtaining optimal structural design of filament wound compositeThen, proper computational tools are developed for predicting the structural properties of the compositeThen, an integrated design-optimization process is developed to minimize the price as the main objective

Keywords： composite pipes     optimization     experimental validation     computational modeling     filament winding    

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Optimization of multi machining characteristics in WEDM of WC-5.3%Co composite using integrated approach

Kamal JANGRA, Sandeep GROVER, Aman AGGARWAL

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 288-299 doi: 10.1007/s11465-012-0333-4

Abstract: In present work, intricate machining of WC-5.3%Co composite on WEDM has been reported.

Keywords： tungsten carbide composite     wire electrical discharge machining (WEDM)     Taguchi method     grey relational    

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Optimization of the mechanical performance and damage failure characteristics of laminated composites

Frontiers of Structural and Civil Engineering   Pages 1357-1369 doi: 10.1007/s11709-023-0996-4

Abstract: of fiber angle on the tensile load-bearing performance and damage failure characteristics of glass compositeThe composite laminates were fabricated using vacuum-assisted resin molding.Experimental testing revealed that, although the composite laminates laid along the 0° direction exhibitedapproaches demonstrated their ability to capture the mechanical behavior and damage failure modes of compositedifferent fiber orientations, which may be used to prevent the catastrophic failures that occur in composite

Keywords： fiber orientation     composite laminates     stiffness degradation     analytical approaches     finite element    

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A composite optimization method for separation parameters of large-eccentricity pico-satellites None

Lai TENG, Zhong-he JIN

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 5,   Pages 685-698 doi: 10.1631/FITEE.1700416

Abstract: In this paper, we present a composite optimization method, which combines angular velocities with externalFinally, the reasons for deviation of angular velocities and unreliable optimization results are presentedThis optimization method is proved through a ground test which offsets the gravity.Simulation and test results show that the optimization method can effectively optimize the separation

Keywords： Pico-satellite     Satellite–rocket separation mechanism     Separation parameters     Parameter optimization    

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Stability analysis and optimization of excavation method of double-arch tunnel with an extra-large span

Yiguo XUE, Huimin GONG, Fanmeng KONG, Weimin YANG, Daohong QIU, Binghua ZHOU

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 136-146 doi: 10.1007/s11709-020-0710-8

Abstract: The Xiamen Haicang double-arch tunnel has a maximum span of 45.73 m and a minimum burial depth of 5.8 m. A larger deformation or collapse of the tunnel is readily encountered during tunnel excavation. It is therefore necessary to select a construction approach that is suitable for double-arch tunnel projects with an extra-large span. In this study, three construction methods for double-arch tunnels with extra-large spans were numerically simulated. Subsequently, the deformation behavior and stress characteristics of the surrounding rock were obtained and compared. The results showed that the double-side-drift method with temporary vertical support achieves better adaptability in the construction of such tunnels, which can be observed from both the numerical results and monitoring data. In addition, the improved temporary support plays a critical role in controlling the surrounding rock deformation. In addition, the disturbance resulting from the excavation of adjacent drifts was obvious, particularly the disturbance of the surrounding rock caused by the excavation of the middle drift. The present findings can serve as the initial guidelines for the construction of ultra-shallowly buried double-arch tunnels with extra-large spans.

Keywords： double-arch tunnel     triple-layer composite liner system     numerical modeling     stress analysis     settlement    

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Technological development and engineering applications of novel steel-concrete composite structures

Jianguo NIE, Jiaji WANG, Shuangke GOU, Yaoyu ZHU, Jiansheng FAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 1-14 doi: 10.1007/s11709-019-0514-x

Abstract: community, the development and proposition of novel resource-saving high-performance steel-concrete compositeThis paper summarizes the technical principles and applications of the long-span bi-directional compositeon uplift-restricted and slip-permitted (URSP) connectors, the steel plate concrete composite (SPCC)strengthen technique, and the innovative composite joints.The research results also indicate that the high-performance steel-concrete composite structures have

Keywords： high-performance composite structure     bi-directional composite     composite transfer     uplift-restricted andslip-permitted connectors     steel plate concrete composite strengthen    

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Deep eutectic solvent inclusions for high- composite dielectric elastomers

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 996-1002 doi: 10.1007/s11705-022-2138-2

Abstract: The as-prepared composite elastomers showed good stretchability and a greatly enhanced dielectric constantbelieved that low-cost, easy-synthesis and environmentally friendly deep eutectic solvents including composite

Keywords： composite materials     deep eutectic solvent     dielectric elastomer     high dielectric constant    

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An antibiotic composite electrode for improving the sensitivity of electrochemically active biofilm biosensor

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1518-7

Abstract:

• Antibiotic azithromycin employed in graphite electrode for EAB biosensor.

Keywords： AZM@GP composite electrode     EAB-biosensor     Water quality early-warning    

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Progressive failure analysis of notched composite plate by utilizing macro mechanics approach

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 623-642 doi: 10.1007/s11709-021-0726-8

Abstract: study, gradual and sudden reduction methods were combined to simulate a progressive failure in notched compositecomputational cost and is also capable of simultaneously predicting the first and last ply failures (LPFs) in compositethe first ply failure (FPF), LPF, and dominant failure modes of carbon/epoxy and glass/epoxy notched compositeeffects of mechanical properties and different stacking sequences on the propagation of damage in notched compositeit is revealed that the proposed method can accurately simulate the failure propagation in notched composite

Keywords： progressive failure     notched composite plate     Hashin failure criterion     macro mechanics approach     finite    

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Bending and rotational behaviour of semi-continuous composite beams

WANG Jingfeng, LI Guoqiang

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 2,   Pages 116-122 doi: 10.1007/s11709-008-0015-9

Abstract: Stresses and deflections were measured in various semi-continuous composite beams.The bending and rotational capacities of the composite connections were measured in terms of beam curvaturesand deflections by using two full-scale semi-rigid composite frames with monotonic loadings.The effect of semi-rigid connections on the performance of composite beams with various loadings wasor continuous composite beams.

Keywords： rotational     effective     deflection calculation     semi-continuous composite     full-scale semi-rigid    

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Experimental study on flexural behavior of ECC/RC composite beams with U-shaped ECC permanent formwork

Zhi QIAO, Zuanfeng PAN, Weichen XUE, Shaoping MENG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1271-1287 doi: 10.1007/s11709-019-0556-0

Abstract: To enhance the durability of a reinforced concrete structure, engineered cementitious composite (ECC)This paper presents a new means to address this issue by introducing a composite beam with a U-shapedThe flexural performance of the ECC/RC composite beam has been investigated experimentally with eightAccording to the test results, the failure of a composite beam with a U-shaped ECC formwork is initiatedUnder the same reinforcement configurations, ECC/RC composite beams exhibit increases in flexural performance

Keywords： engineered cementitious composite (ECC)     durability     ECC/RC composite beam     permanent formwork     flexural    

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Bending performance of composite bridge deck with T-shaped ribs

Qingtian SU, Changyuan DAI, Xu JIANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 990-997 doi: 10.1007/s11709-019-0532-8

Abstract: This paper proposes a new type of steel-concrete composite deck, which is composed of orthotropic steelCompared with conventional OSD system, this new type of composite bridge deck can also improve fatigueConsidering that this type of composite deck is not yet applied in practical engineering and its mechanicalThe test results showed that the plastic performance of this kind of composite bridge deck was satisfying

Keywords： bending performance     composite bridge deck     T-shaped steel ribs    

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Surface-tailoring chlorine resistant materials and strategies for polyamide thin film composite reverse

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 564-591 doi: 10.1007/s11705-021-2109-z

Abstract: Polyamide thin film composite membranes have dominated current reverse osmosis market on account of theirof polyamide toward chlorine attack has been regarded as the Achilles’s heel of polyamide thin film compositeVarious strategies, particularly those involved membrane material optimization and surface modificationsThe advancement in the development of chlorine resistant polyamide thin film composite membranes is reviewed

Keywords： reverse osmosis     polyamide     thin film composite membranes     chlorine resistance     surface modification    

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Water film coated composite liquid metal marble and its fluidic impact dynamics phenomenon

Yujie DING,Jing LIU

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 29-36 doi: 10.1007/s11708-015-0388-0

Abstract: A composite liquid metal marble made of metal droplet coated with water film was proposed and its impactThe striking behaviors of the composite liquid metal marbles on a substrate at room temperature werefundamental finding raised profound multiphase fluid mechanics for understanding the complex liquid composite

Keywords： liquid metal marble     metallic droplet     composite fluid     impact dynamics     multiphase fluid mechanics    

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Numerical simulation of squat reinforced concrete wall strengthened by FRP composite material

Ali KEZMANE,Said BOUKAIS,Mohand Hamizi

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 445-455 doi: 10.1007/s11709-016-0339-9

Abstract: research works and practical achievements of the application of the external reinforcement by using FRP compositethis paper is to present a numerical simulation of squat reinforced concrete wall strengthened by FRP compositemodel material is used for concrete, for steel, an elastic-plastic behavior is adopted, and the FRP composite

Keywords： simulation     strengthening     reinforced concrete wall     squat wall     FRP composite material     damage     Abaqus    

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Title Author Date Type Operation

Structural optimization of filament wound composite pipes

Roham RAFIEE; Reza SHAHZADI; Hossein SPERESP

Journal Article

Optimization of multi machining characteristics in WEDM of WC-5.3%Co composite using integrated approach

Kamal JANGRA, Sandeep GROVER, Aman AGGARWAL

Journal Article

Optimization of the mechanical performance and damage failure characteristics of laminated composites

Journal Article

A composite optimization method for separation parameters of large-eccentricity pico-satellites

Lai TENG, Zhong-he JIN

Journal Article

Stability analysis and optimization of excavation method of double-arch tunnel with an extra-large span

Yiguo XUE, Huimin GONG, Fanmeng KONG, Weimin YANG, Daohong QIU, Binghua ZHOU

Journal Article

Technological development and engineering applications of novel steel-concrete composite structures

Jianguo NIE, Jiaji WANG, Shuangke GOU, Yaoyu ZHU, Jiansheng FAN

Journal Article

Deep eutectic solvent inclusions for high- composite dielectric elastomers

Journal Article

An antibiotic composite electrode for improving the sensitivity of electrochemically active biofilm biosensor

Journal Article

Progressive failure analysis of notched composite plate by utilizing macro mechanics approach

Journal Article

Bending and rotational behaviour of semi-continuous composite beams

WANG Jingfeng, LI Guoqiang

Journal Article

Experimental study on flexural behavior of ECC/RC composite beams with U-shaped ECC permanent formwork

Zhi QIAO, Zuanfeng PAN, Weichen XUE, Shaoping MENG

Journal Article

Bending performance of composite bridge deck with T-shaped ribs

Qingtian SU, Changyuan DAI, Xu JIANG

Journal Article

Surface-tailoring chlorine resistant materials and strategies for polyamide thin film composite reverse

Journal Article

Water film coated composite liquid metal marble and its fluidic impact dynamics phenomenon

Yujie DING,Jing LIU

Journal Article

Numerical simulation of squat reinforced concrete wall strengthened by FRP composite material

Ali KEZMANE,Said BOUKAIS,Mohand Hamizi

Journal Article