Free Vibration Characteristics of CFRP Laminate with One-Dimensional Periodic Structures

Dou, Yukuan; Zhang, Jinguang; Wen, Xianglong; Cheng, Hui; Hai-xin, Liu

doi:10.3390/polym15051118

Cited by 4 publications

(3 citation statements)

References 40 publications

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“…The fixed ring frame and segmented body of the fragile cover were crafted from T700/SYE15001 carbon fiber unidirectional prepreg blanks, each with a single layer thickness of 0.2 mm. The mechanical properties of this monolayer [9] are detailed in Table 1, while the properties of epoxy resin SYE15001 were experimentally measured. Additionally, Table 2 outlines the properties of SYE15001, steel, and T700 carbon fiber unidirectional fabrics [10].…”

Section: Fragile Cover Structure Designmentioning

confidence: 99%

Simulation and Experimental Study of Mooring Function Composite Fragile Cover

Mao,

Yu,

Zhang

2024

J. Phys.: Conf. Ser.

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Under the requirement that the fragile cover does not eject debris during missile launches, and to meet the demands of rapid combat, there is an urgent need for a lightweight missile launching system. Enhancing the effective utilization area of the fragile cover is an effective way to realize the lightweight of the missile launching system. This paper utilizes the properties of carbon fiber composite materials to design a novel frangible cover with mooring functionality and establishes numerical models for the cover’s pressure and bursting dynamics. In the pressure finite element model, the Tasi-Wu failure criterion is employed for damage assessment. In the bursting dynamics finite element model, a cohesive element is used to simulate the elastic behavior and damage evolution of the weak area, while a membrane element is employed to simulate the mooring function. Comparative analysis of numerical results with experimental data reveals minor discrepancies, with errors of 5.44% for maximum deformation under pressure and 8.1% for bursting force, respectively, validating the model’s rationality and effectiveness. Results from both experimental tests and finite element analyses demonstrate the successful implementation of mooring functionality in the segmented body. The effective utilization area of the cover was increased by 71.13%. This research provides a feasible direction for subsequent studies on non-ejecting frangible covers.

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Section: Fragile Cover Structure Designmentioning

confidence: 99%

Simulation and Experimental Study of Mooring Function Composite Fragile Cover

Mao,

Yu,

Zhang

2024

J. Phys.: Conf. Ser.

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“…Therefore, reduction of vibration effects as increasing in natural frequency and damping of the structural components becomes an important issue in various field, 17,18 so CFRP composites provides the advantages of high mechanical properties as well as its better vibration properties. 19,20 Numerous studies have performed for increasing in damping capacity of CFRP composites using different methods. [21][22][23] In addition, many efforts have been devoted to identify and improve damping and vibration response of CFRP composites by using nanoparticle incorporation.…”

Section: Introductionmentioning

confidence: 99%

“…Vibration‐damping response is an important characteristic that affect the stability and reliability of a structural system. Therefore, reduction of vibration effects as increasing in natural frequency and damping of the structural components becomes an important issue in various field, 17,18 so CFRP composites provides the advantages of high mechanical properties as well as its better vibration properties 19,20 . Numerous studies have performed for increasing in damping capacity of CFRP composites using different methods 21–23 .…”

Section: Introductionmentioning

confidence: 99%

SiO nanoparticle modified CFRP composites effecting on mechanical and vibration damping properties

Bozkurt,

Bulut,

Erkliğ

et al. 2023

Polymer Composites

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SiO nanoparticle inclusion effects on vibration‐damping and mechanical properties of carbon fiber reinforced plastic composites (CFRP) were experimentally investigated by incorporating the NS particles into the epoxy resin system. The nanoparticles in the SiO form were incorporated into the epoxy resin at different ratios (0.5%, 1%, 1.5%, 2%, and 3%) in weight to produce the modified CFRP samples. In addition, the effects of cutout with two different types (edgewise semicircular and central circular) on the vibration response of SiO modified CFRP test samples were determined for different SiO particle incorporation ratios. In this way, variation of both mechanical and vibration properties was experimentally determined in terms of cutout weakening of the composite in the middle while incorporating the SiO particle modification of the CFRP composites. It was seen from this study that the incorporation SiO nanoparticles into CFRP composites were provided the increasing trend in the vibration‐damping and mechanical properties and the highest mechanical and vibration properties were obtained for the addition of 1.5 wt% SiO nanoparticles. On the other hand, further SiO nanoparticle addition, more than 1.5–2 wt%, decreased in mechanical and vibration properties of the composite test samples.Highlights SiO nanoparticle effects on mechanical properties of CFRP composite laminates. SiO nanoparticle effects on vibration damping of CFRP composite laminates. Central cutout effects on vibration characteristics of CFRP composite laminates. Fracture characteristics of CFRP composite laminates with SiO nanoparticle incorporation.

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Numerical and experimental frequency analysis of damaged fiber‐reinforced metal laminated composite

Thomas,

Akkasali,

Patle

et al. 2024

Z Angew Math Mech

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This research numerically evaluated the eigenvalue responses of the damaged fiber metal laminate (FML) structure. The current numerical model is delved into including crack‐type damage effect on the structural integrity/ stiffness via frequency response. In this regard, a complete mathematical model of FML has been derived through higher‐order shear deformation kinematics for computational purposes. The mathematical model is converted to computer code in the MATLAB platform to predict the eigenvalue responses of FML components with and without damage. The damage influences are considered via circular meshing of finite element steps associated with the isoparametric element (nine nodes and nine degrees of freedom for each node). The solution consistency is checked via convergence, and the results are compared with data available in the open domain. Further, an experimental test is carried out to improve confidence using an in‐house test rig. The experiment was conducted by varying the length of the FML in 0.1 m increments. The results showed good agreement between the numerical and experimental data, with the lowest deviation being 0.29% and the highest 8.97%. The developed numerical model is extended to analyze the influences of design parameters such as geometry shape, aspect ratio (a/b), thickness ratio (a/h) ratio, curvature ratio, and fiber layup sequence on the natural frequency response.

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Free Vibration Characteristics of CFRP Laminate with One-Dimensional Periodic Structures

Cited by 4 publications

References 40 publications

Simulation and Experimental Study of Mooring Function Composite Fragile Cover

Simulation and Experimental Study of Mooring Function Composite Fragile Cover

SiO nanoparticle modified CFRP composites effecting on mechanical and vibration damping properties

Numerical and experimental frequency analysis of damaged fiber‐reinforced metal laminated composite

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