Analytical approach to study the vibration of delaminated m<scp>ulti‐scale</scp> composite cylindrical shells

Baharali, Ali Akbar; Yazdi, Ali A.

doi:10.1002/pc.25815

Cited by 12 publications

(8 citation statements)

References 31 publications

(32 reference statements)

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“…Viswanathan [ 20 ] studied the free vibration of the anti-symmetric cylindrical shell wall under the first-order shear deformation theory by the spline method, and analyzed the parameters of length, the number of circumferential nodes, the angle of the laminate, the number of laminates, the laminated material, and the boundary conditions of the anti-symmetric cylindrical shell. Baharali [ 21 ] studied the effects of carbon nanotubes (CNTs) and fiber carbon on the vibration frequency of anti-symmetric cylindrical shells, and evaluated the effects of carbon nanotube weight percentage and geometric parameters. Narwariya [ 22 , 23 ] conducted numerical studies on the free vibration and harmonic analysis of anti-symmetric laminates, and obtained the frequency-amplitude relationship of anti-symmetric anisotropic plates.…”

Section: Introductionmentioning

confidence: 99%

Stable Characteristics Optimization of Anti-Symmetric Cylindrical Shell with Laminated Carbon Fiber Composite

et al. 2022

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This paper proposes a multi-objective optimization model for anti-symmetric cylindrical shell in the bionic gripper structure. Here, the response surface method is used to establish multiple surrogate models of the anti-symmetric cylindrical shell, and the non-dominated sorting genetic algorithm-II (NSGA-II) is used to optimize the design space of the anti-symmetric cylindrical shell; the design points of the anti-symmetric cylindrical shell are verified by experimental methods. The optimization goals are that the first steady state transition load (the transition process of the bionic gripper structure from the open state to the closed state) of the anti-symmetric cylindrical shell is minimized, and the second steady state transition load (the transition process of the bionic gripper structure from the closed state to the open state) is the largest. At the same time, in order to prevent stable instability caused by stress concentration in the second steady state of the anti-symmetric cylindrical shell, the maximum principal plane stress is given as the constraint condition. The validity of the optimization results is verified by finite element and experimental methods. Due to the stable transition load of the anti-symmetric cylindrical shell being significantly larger than that of the orthogonal laminated plate, therefore, the anti-symmetric cylindrical shell has potential application prospects in the application of deformable structures and bionic structures that require composite functions such as having light weight, high strength, and large clamping force. The novelty of this paper lies in the multi-objective optimization of the application of the antisymmetric bistable cylindrical shell in the bionic gripper structure.

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Section: Introductionmentioning

confidence: 99%

Stable Characteristics Optimization of Anti-Symmetric Cylindrical Shell with Laminated Carbon Fiber Composite

et al. 2022

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“…Applying different cycle times and vibration stress, Longbiao et al [3] analyzed the influences of composite properties and damage state on damping. Baharali et al [4] predicted the frequency of delaminated multi-scale composite shells based on an approximate-analytical solution. Qi et al [5] revealed increasing the fiber modulus can increase the frequency of the fiber-reinforced composite tube.…”

Section: Introductionmentioning

confidence: 99%

Active vibration control of a piezoelectric composite laminate

Chen

Liu

2022

J. Phys.: Conf. Ser.

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An active vibration control method of the piezoelectric composite laminated plate under the external disturbance is studied. Firstly, the dynamic model of the piezoelectric composite laminated plate is derived based on the classical laminated plate theory and the Hamilton's principle. And subsequently, a sliding mode observer is developed for the external disturbance, and the stability of the observer is verified by the Lyapunov equation, and also the LQR controller is designed based on the observed state. The particle swarm algorithm is adapted to optimize the weighting matrix. In the end, the impacts of the geometric parameters and the stacking sequences on the dynamic behavior of the piezoelectric composite material plate is analyzed. Results indicate that the sliding mode observer can accurately track the original state, and the vibration of the piezoelectric composite material plate can be suppressed effectively by the LQR control based on the particle swarm

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“…Due to the outstanding advantages such as excellent corrosion resistance, good thermal insulation, the high stiffness, and low weight, some composite materials have been used to build reinforced thermoplastic pipes (RTPs) which can be used in the field of ocean engineering. [1][2][3][4][5] At present, RTPs have been successfully used as oil-gathering pipes, water injection pipes, and gas export pipes in the Middle East and Southeast Asia for many years. [6] As shown in Figure 1, RTPs consist of three main parts including the coating, laminates, and liner.…”

Section: Introductionmentioning

confidence: 99%

An analytical model for the progressive failure prediction of reinforced thermoplastic pipes under axial compression

Liu

Wang

et al. 2021

Polymer Composites

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An analytical model is presented to predict the progressive failure of reinforced thermoplastic pipes (RTPs) under axial compression, in which the existing homogenization method and a nonlinear stiffness degradation model are combined to predict the continuum damage mechanical response in an iterative and cyclic way. As the homogenization method ignores the effect of the cross‐sectional curvature on the damage sequence, a stress correction factor is defined to consider this effect. Once corrected stresses satisfy Hashin‐Yeh failure criteria, the nonlinear stiffness degradation model is adopted to update the constitutive relationship established by the homogenization method. The proposed model is capable of identifying the damage location and failure mode, analyzing damage accumulation and predicting the ultimate compression. Meanwhile, ABAQUS Explicit quasi‐static analyses calling a user‐defined subroutine were conducted to capture the progressive failure mechanisms in 3D composites and verify the proposed model. The proposed model was found to give accurate prediction on the elastic stiffness, first ply failure, the damaged stiffness, the ultimate compression, and stress distributions. Furthermore, the effects of fiber's winding angles and the thickness‐radius ratios have been discussed, which illustrate that tensile failure mode would appear even when RTPs are under axial compression.

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Analytical approach to study the vibration of delaminated multi‐scale composite cylindrical shells

Cited by 12 publications

References 31 publications

Stable Characteristics Optimization of Anti-Symmetric Cylindrical Shell with Laminated Carbon Fiber Composite

Stable Characteristics Optimization of Anti-Symmetric Cylindrical Shell with Laminated Carbon Fiber Composite

Active vibration control of a piezoelectric composite laminate

An analytical model for the progressive failure prediction of reinforced thermoplastic pipes under axial compression

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