Stability analysis of composite thin-walled pipes conveying fluid

Bahaadini, Reza; Dashtbayazi, M.R.; Hosseini, Mohammad; Khalili-Parizi, Zahra

doi:10.1016/j.oceaneng.2018.04.061

Cited by 46 publications

(4 citation statements)

References 44 publications

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“…Similarly, the stability of the composite thin wall tube was analysed using numerical method with the effects of various parameters, such as fibre orientation angle, volume fraction of fibre, composite lay-up, size of fibre, structural damping coefficient, mass fluid ratio and elastic boundary conditions [79]. During the experimental process, the cantilever boundary condition was assumed with spring support at free end.…”

Section: The Significance Of Frp Composite Pipes In Industry Scenariomentioning

confidence: 99%

An overview of burst, buckling, durability and corrosion analysis of lightweight FRP composite pipes and their applicability

Prabhakar

Rajini

Ayrılmış

et al. 2019

Composite Structures

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Section: The Significance Of Frp Composite Pipes In Industry Scenariomentioning

confidence: 99%

An overview of burst, buckling, durability and corrosion analysis of lightweight FRP composite pipes and their applicability

Prabhakar

Rajini

Ayrılmış

et al. 2019

Composite Structures

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“…A suitable technique needs to be employed to be able to obtain mode shapes that can be used in failure analysis, damage assessment, shape estimation, and in order to avoid pessimistic effects of vibration. While significant attentions have been given to the techniques that can be employed to obtain mode shapes of other structures, [10][11][12][13][14][15][16] few researchers have paid attentions to the methods for obtaining the mode shapes of pipes conveying fluid. Liu et al 17 utilized frequency response function based technique to compute mode shapes of fluid pipe while natural frequencies were obtained using a hybrid analytical numerical technique based on the Transfer Matrix Method.…”

Section: Introductionmentioning

confidence: 99%

Investigation of approximate mode shape and transition velocity of pipe conveying fluid in failure analysis

Oke

Adeyemi

Salau

2022

Advances in Mechanical Engineering

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Structures dynamic characteristics and their responses can change due to variations in system parameters. With modal characteristics of the structures, their dynamic responses can be identified. Mode shape remains vital in dynamic analysis of the structures. It can be utilized in failure analysis, and the dynamic interaction between structures and their supports to circumvent abrupt failure. Conversely, unlike empty pipes, the mode shapes for pipes conveying fluid are tough to obtain due to the intricacy of the eigenvectors. Unfortunately, fluid pipes can be found in practice in various engineering applications. Thus, due to their global functions, their dynamic and failure analyses are necessary for monitoring their reliability to avert catastrophic failures. In this work, three techniques for obtaining approximate mode shapes (AMSs) of composite pipes conveying fluid, their transition velocity and relevance in failure analysis were investigated. Hamilton’s principle was employed to model the pipe and discretized using the wavelet-based finite element method. The complex modal characteristics of the composite pipe conveying fluid were obtained by solving the generalized eigenvalue problem and the mode shapes needed for failure analysis were computed. The proposed methods were validated, applied to failure analysis, and some vital results were presented to highlight their effectiveness.

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“…[47,48]) examined aero-thermoelastic behaviors of the rotating FGM thin-walled blades exposed to supersonic airflow. Bahaadini et al [49] studied vibration and stability analysis of the composite thin-walled pipe conveying fluid. They investigated the effects of fiber orientation angle, volume fraction of fiber, composite lay-up, size of fiber, structural damping coefficient, mass fluid ratio, and elastic boundary conditions on eigenvalue and critical fluid velocity.…”

Section: Introductionmentioning

confidence: 99%

Wave propagation in rotating thin‐walled porous blades reinforced with graphene platelets

2022

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In this study, wave propagation in functionally graded (FG) graphene reinforced porous nanocomposite rotating thin‐walled blades is examined. The porous matrix shows both uniform and nonuniform distribution of graphene platelet alongside the thickness direction. The rule of mixture is used to obtain the effective Young's modulus, based on the Halpin–Tsai micromechanics model along with the mass density as well as Poisson's ratio of the porous blades. Applying the theory of first‐order shear deformation, it is possible to derive the governing motion equations based on Hamilton's principle whose analytical solution results in obtaining wave frequency as well as phase velocity of the rotating thin‐walled porous blades. According to the theory of thin‐walled Timoshenko beam, both lagging and flapping vibration modes have been considered. The impacts of number of layers, graphene platelets together with porous distribution patterns, weight fraction of graphene platelets, geometry of graphene platelets nanofillers as well as porosity coefficient on the wave propagation behaviors of the rotating thin‐walled porous blades are examined for the first time. The results show that the symmetric distribution of porosity with graphene platelets pattern A can predict the highest wave frequency and phase velocity for the composite blades.

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Stability analysis of composite thin-walled pipes conveying fluid

Cited by 46 publications

References 44 publications

An overview of burst, buckling, durability and corrosion analysis of lightweight FRP composite pipes and their applicability

An overview of burst, buckling, durability and corrosion analysis of lightweight FRP composite pipes and their applicability

Investigation of approximate mode shape and transition velocity of pipe conveying fluid in failure analysis

Wave propagation in rotating thin‐walled porous blades reinforced with graphene platelets

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