Mechanical behavior of concrete filled glass fiber reinforced polymer-steel tube under cyclic loading

Zhu, Chunyang; Zhao, Yaohua; Gao, Shuang; Li, Xiaofei

doi:10.1631/jzus.a1300206

Cited by 9 publications

(5 citation statements)

References 14 publications

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“…Following low-speed impacts, CFRP plates typically do not exhibit visible surface damage; however, various microdamages may manifest within the material, including micro voids, matrix cracking, delamination, and fiber fractures [28,29]. These damages can result in a decrease in material stiffness, significantly impacting the material's safe utilization [30][31][32][33][34]. Therefore, the impact damage on the CFRP plate can be considered as a reduction in material stiffness.…”

Section: The 3d Fe Model Of the Cfrp Platementioning

confidence: 99%

Evaluating impact damage on carbon fiber-reinforced polymer plates utilizing zero-group-velocity Lamb waves

Ren,

Meng,

Deng

2024

Smart Mater. Struct.

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This paper presents an effective method for evaluating the impact damage of composite plates using zero-group-velocity (ZGV) Lamb waves. A finite element (FE) model of the carbon fiber-reinforced polymer (CFRP) plate is established to analyze in detail the propagation characteristics of the S1-ZGV Lamb wave mode with a specified propagation direction. The study investigates the changes in the S1-ZGV mode with varying damage levels, characterized by a decrease in elastic moduli. Results indicate that as the damage level increases, the corresponding S1-ZGV frequency and amplitude decrease proportionally. The spectral amplitude at the initial S1-ZGV frequency exhibits a consistent and significant decrease with increasing damage levels, offering a reliable method for accurately assessing damage in CFRP plates. Additionally, the S1-ZGV mode of the CFRP plate is experimentally excited using the pitch-catch technique with air-coupled ultrasonic transducers to explore the variations in the S1-ZGV mode with different impact damages. Experimental findings show that the spectral amplitude of the S1-ZGV mode at the initial S1-ZGV frequency decreases monotonically and sensitively with an increasing number of impacts. These experimental results correlate with the FE analysis, validating the effectiveness of accurately evaluating impact damage in CFRP plates based on the spectral amplitude of S1-ZGV modes.

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Section: The 3d Fe Model Of the Cfrp Platementioning

confidence: 99%

Evaluating impact damage on carbon fiber-reinforced polymer plates utilizing zero-group-velocity Lamb waves

Ren,

Meng,

Deng

2024

Smart Mater. Struct.

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“…Similarly, a similar conclusion is drawn in the third-order modal, where the damping ratios of the tubes in y and z are significantly greater than those of the tubes in the x direction, and the same circular tube is in the same vibration mode, even if the vibration order is different, the damping ratio is similar. To probe into the overall damping of CFRP truss structure, the dissipated energy and strain energy of all elements of CFRP truss containing metal joints are calculated for summation, Shock and Vibration and the damping loss factors of CFRP truss structure containing metal joints in the first three order modals are calculated according to formulas (4), (5), and 7:…”

Section: Simulation Calculation Of the Damping Of Cfrp Trussmentioning

confidence: 99%

“…e truss-type floating raft has superior vibration isolation effect because of its unique periodic structure and complex internal energy transmission mechanism [1]. Scholars have carried out a lot of researches to improve the vibration isolation performance of the floating raft frame to study the vibration isolation performance of the raft frame structure by changing the geometric size and number of the subelements of raft frame structure [2][3][4][5][6], to design the new form of the raft frame structure to reduce vibration [7][8][9], and to study the damping of the raft frame structure hoping to obtain good vibration isolation performance [10][11][12][13][14][15]. Compared with traditional metal materials, carbon fiberreinforced composites have such advantages as large specific strength, high specific modulus, high damping, and strong designability [13,[16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Design and Vibration Isolation Performance of Truss‐Type CFRP Raft Frame

Wen

Wen-hu

Fang

et al. 2019

Shock and Vibration

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Traditional raft frame is single in the form of materials and structures. To give full play to its vibration isolation performance, a truss-type CFRP (carbon fiber-reinforced plastics) raft frame was designed and prepared. Based on the composite material mechanics and damping strain energy model, a method combining the finite element simulation and experiment was used to calculate the damping of the designed CFRP truss structure. The modal harmonic response analysis of CFRP truss structure was carried out by virtue of the ABAQUS finite element software to explore the influence of structure parameters on the vibration transmission characteristics of CFRP truss structure and provide reference for the design of a truss-type CFRP raft frame. The truss-type CFRP floating raft vibration isolation platform was established. Given different excitation sources, the truss-type CFRP raft frame designed in this paper was demonstrated to have good vibration isolation effect in most frequency bands by analyzing the acceleration-vibration level differences.

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“…Mechanical equipment will inevitably produce vibrations while working, and the deleterious vibrations can be reduced by installing a raft frame vibration isolator. Raft frames have outstanding vibration isolation performance, and numerous studies have been carried out to improve the damping performance of the basic raft frame structure, such as changing the geometric size or using different materials [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Damping Capacity of CFRP Raft Frames

Zhang

Rao

et al. 2022

Materials

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In this paper, based on the composite laminated plate theory and a strain energy model, the damping capacity of a Carbon Fiber Reinforced Plastics (CFRP) raft frame was studied. According to the finite element analysis (FEA) and damping ratio prediction model, the influences of different layups on the damping capacity of the raft frame and its components (top/bottom plate and I-support) were discussed. Comparing the FEA results with the test results, it can be figured out that the CFRP laminate layup has a great influence on the damping ratio of the raft frame, and the maximum error of the first-order natural frequency and damping ratio of the top/bottom plate were 5.6% and 15.1%, respectively. The maximum error of the first-order natural frequency of the I-support between the FEA result and the test result was 7.5%, suggesting that because of the stress concentration, the error of the damping ratio was relatively large. As for the raft frame, the damping performance was affected by the I-support arrangement and the simulation analysis was in good agreement with the experimental results. This study can provide a useful reference for improving the damping performance of CFRP raft frames.

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Mechanical behavior of concrete filled glass fiber reinforced polymer-steel tube under cyclic loading

Cited by 9 publications

References 14 publications

Evaluating impact damage on carbon fiber-reinforced polymer plates utilizing zero-group-velocity Lamb waves

Evaluating impact damage on carbon fiber-reinforced polymer plates utilizing zero-group-velocity Lamb waves

Design and Vibration Isolation Performance of Truss‐Type CFRP Raft Frame

Investigation of the Damping Capacity of CFRP Raft Frames

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