Vibration of variable stiffness composite laminate and hybrid composite laminate plates coupled to sloshing fluid

Karimi, Mahdi; Khorshidi, Korosh; Rezaeisaray, Mehdi; Moutsanidis, Georgios

doi:10.1016/j.compstruct.2022.115630

Cited by 17 publications

(6 citation statements)

References 44 publications

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“…While implementing the VKT, nonlinearity caused an increase in the frequency of the porous plates with higher stiffness under post-buckling conditions. Additionally, Karimi et al [360] employed the Ritz solution combined with the polynomial series expansion, TSDT, and Reddy SDT to investigate the FV of two various types of CPs (variable stiffness composite laminated and hybrid composite laminated), which were subjected to interaction with the sloshing fluid as shown in Fig. 42.…”

Section: Tablementioning

confidence: 99%

Computational Linear and Nonlinear Free Vibration Analyses of Micro/Nanoscale Composite Plate-Type Structures With/Without Considering Size Dependency Effect: A Comprehensive Review

Al Mahmoud,

Safaei,

Sahmani

et al. 2024

Arch Computat Methods Eng

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Recently, the mechanical performance of various mechanical, electrical, and civil structures, including static and dynamic analysis, has been widely studied. Due to the neuroma's advanced technology in various engineering fields and applications, developing small-size structures has become highly demanded for several structural geometries. One of the most important is the nano/micro-plate structure. However, the essential nature of highly lightweight material with extraordinary mechanical, electrical, physical, and material characterizations makes researchers more interested in developing composite/laminated-composite-plate structures. To comprehend the dynamical behavior, precisely the linear/nonlinear-free vibrational responses, and to represent the enhancement of several parameters such as nonlocal, geometry, boundary condition parameters, etc., on the free vibrational performance at nano/micro scale size, it is revealed that to employ all various parameters into various mathematical equations and to solve the defined governing equations by analytical, numerical, high order, and mixed solutions. Thus, the presented literature review is considered the first work focused on investigating the linear/nonlinear free vibrational behavior of plates on a small scale and the impact of various parameters on both dimensional/dimensionless natural/fundamental frequency and Eigen-value. The literature is classified based on solution type and with/without considering the size dependency effect. As a key finding, most research in the literature implemented analytical or numerical solutions. The drawback of classical plate theory can be overcome by utilizing and developing the elasticity theories. The nonlocality, weight fraction of porosity, or the reinforcements, and its distribution type of elastic foundation significantly influence the frequencies.

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Section: Tablementioning

confidence: 99%

Computational Linear and Nonlinear Free Vibration Analyses of Micro/Nanoscale Composite Plate-Type Structures With/Without Considering Size Dependency Effect: A Comprehensive Review

Al Mahmoud,

Safaei,

Sahmani

et al. 2024

Arch Computat Methods Eng

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“…According to the equation K M , n w = stiffness K and the relationship between stiffness K and modulus E' can be obtained [18]: where E' refers to the real part of the complex tensile modulus, S e is the force bearing area, S I is the surface area of the free end, h is the thickness of the laminates, q is the structure shape coefficient. The loss factor β is obtained as follows: The loss factor obtained using equation (7), is the loss factor for the two attenuation periods. When the attenuation period is n, the loss factor of the viscoelastic material structure can be obtained as follows: In this study, the free decay method was used to conduct tests on composite laminates, the dynamic performance of the composite laminates was measured, and the G′(T) curve of the structural vibration shear modulus and β(T) curve of the structural vibration loss factor with time were obtained [24].…”

Section: Formula Derivationmentioning

confidence: 99%

“…The results show that the use of curved fibers with variable stiffness laminates can significantly affect the natural frequency of the laminates by effectively changing their vibration modes, but this effect is not obvious for laminates with large thicknesses. Karimi et al [7] applied a modified shear deformation plate theory to investigate the free vibration of vertically laminated composite plates coupled to a sloshing liquid. Niu Xuejuan et al [8] explored the influence of the layering sequence on the natural frequency of composite laminates, and found that the layering of composite laminates has a significant influence on its natural frequency.…”

Section: Introductionmentioning

confidence: 99%

Study on the effect of curved fiber laying angle on the vibration free attenuation of composite laminates

Wang

Yang²,

Chen³

et al. 2023

Mater. Res. Express

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Firstly, three groups of fiber curve laminates with different numbers of layers and different fiber curve angles were designed and prepared. A cantilever plate free vibration test was used to analyze the influence of the fiber curve angle on the vibration free attenuation characteristics of the laminates. The three groups of contrast test results show that the fiber curve angle has a significant effect on the loss factor of the laminate structure. When the angle change of the fiber curve was ±<45|60>, the loss factor of the laminates reached the maximum value, and the vibration damping performance of the laminates was the best. Secondly, modal tests were carried out on the laminates, the modeling and simulation of the variable stiffness laminate were completed, and the influence of the fiber curve angle on the natural frequency of the laminate was explored. The results showed that when the number of laminate layers was the same, the natural frequencies of the laminates first increased and then decreased with an increase in the fiber curve angle. The first three natural frequencies of the laminates reached the maximum value when the fiber curve angle was ±<45|60> or ±<60|75>. Finally, it is concluded that when the fiber curve angle of the laminates varies between ±<45|60>, the damping ratio and the first three natural frequencies of the laminates reach the maximum value, and the vibration damping performance is the best.

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“…[4,5] Mahdi Karimi studied the free vibration characteristics of hybrid composite laminates (HCL) and variable stiffness composite laminates (VSCL) using the Reddy shear deformation plate theory to analyze the natural frequency. [6] In recent years, changing the continuous angle of the laminate's layer started to be used to improve the material's vibration characteristics. [7] Leena Sinha et al found that the natural frequency was influenced by composite laminates with different fiber orientations in various boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of vibration characteristics based on variable‐angle hybrid laminates

Sun

Ren

et al. 2023

Polymer Composites

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Composite laminates are widely used in the aerospace field. Aircraft wings are subject to strong aerodynamic interference, which produces resonance, instability and other phenomena. To avoid this resonance and reduce the vibration of laminates it is essential to adopt a variable‐stiffness laminate. Methods for changing the stiffness include designing the fiber path and inserting a damping layer. The former can increase the natural frequency but does not improve the damping performance. Here we demonstrate how, depending on the resin's agglomeration, variable‐angle hybrid laminates made of carbon fiber and Kevlar fiber increase the damping performance. By using a short beam shear test we found that sandwich hybrid samples with a hybrid ratio of 50% performed better than inter‐laminar hybrid samples, which increased by 19.5%. Based on the results of interlayer properties, 8 layers of pure carbon fiber (CF) laminates and carbon fiber‐kevlar fiber (CF‐KF) hybrid laminates with variable angles were manufactured. Modal tests demonstrated that the change in fiber angle had a greater impact on the natural frequency, the maximum result of which was seen at an angle of <60|75>. By inserting, the KF layer the damping ratio of the <15|30> hybrid laminate increased by 5.45% more than pure CF laminates. These results can be referenced to improve the damping parameters of variable‐angle laminates.

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Vibration of variable stiffness composite laminate and hybrid composite laminate plates coupled to sloshing fluid

Cited by 17 publications

References 44 publications

Computational Linear and Nonlinear Free Vibration Analyses of Micro/Nanoscale Composite Plate-Type Structures With/Without Considering Size Dependency Effect: A Comprehensive Review

Computational Linear and Nonlinear Free Vibration Analyses of Micro/Nanoscale Composite Plate-Type Structures With/Without Considering Size Dependency Effect: A Comprehensive Review

Study on the effect of curved fiber laying angle on the vibration free attenuation of composite laminates

Analysis of vibration characteristics based on variable‐angle hybrid laminates

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