Prediction of Modal Damping of FRP-Honeycomb Sandwich Panels with Arbitrary Geometries

Abbasloo, Aslan; Maheri, M.R.

doi:10.1590/1679-78252537

Cited by 4 publications

(4 citation statements)

References 13 publications

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“…A variety of studies have focused on the mechanical properties and performances of existing structural members reinforced by CFRP. Abbasloo and Maheri (2017) studied the modal characteristics of CFRP composite and designed a method to easily analyze the modal properties of CFRP-Honeycom sandwich panels. Shukri et al (2018) investigated the mechanism of the interfacial crack debonding and introduced the moment-rotation method to simulate the debonding of hybrid CFRP strengthen method.…”

Section: Introductionmentioning

confidence: 99%

Crack and mechanical behavior of CFRP plate-reinforced bridge roofs under high temperature with different anchoring measures

Yuan

Zhu

et al. 2019

Lat. Am. j. solids struct.

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This paper investigates the crack and mechanical behavior of CFRP plate-reinforced bridge roof under high temperature with different anchoring measures. Six CFRP-reinforced test beams with different anchoring schemes were designed and constructed. The beam specimens, after the high temperature effects, were tested under four-point bending loads. The crack propagation, beam deflection, mid-span strain and the damage modes were observed and recorded until failure. The stiffness variation and the debonding failure mechanism of the test beams were comparatively investigated. The results indicate that the debonding bearing capacity of the specimens can be improved by the additional anchoring measures. The concrete shrinkage at the crack and the average crack spacing are more effectively reduced, when the additional anchoring measures are placed at the mid-span and the support position. In addition, a theoretical model is proposed for calculating the intermediate crack debonding bearing capacity. Based on the comparative analysis of various models and test results, it is shown that the proposed model could accurately calculate the intermediate crack debonding bearing capacity of the test specimens.

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Section: Introductionmentioning

confidence: 99%

Crack and mechanical behavior of CFRP plate-reinforced bridge roofs under high temperature with different anchoring measures

Yuan

Zhu

et al. 2019

Lat. Am. j. solids struct.

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“…In the previous research on CFRP reinforcement theory, many researches have been conducted on the numerical simulation analysis of the debonding of CFRP plate-reinforced concrete structures [10][11][12][13][14][15][16]. Tao and Chen [10] simulated the bonding behavior of single-shear specimens, and a simplified finite element model was proposed to simulate the bonding behavior of the interfacial debonding process.…”

Section: Introductionmentioning

confidence: 99%

“…Teng et al [14] and Coelho et al [15] introduced the mesoscale element to study the bonding performance and cracking behavior of the near-surface-mounted (NSM) FRP-reinforced concrete structure. Abbasloo and Maheri [16] studied the FRP-honeycomb sandwich panels by using the finite element meshless method.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation on Carbon Fiber‐Reinforced Polymer‐Strengthened Concrete Beam after High‐Temperature Action of Asphalt Paving Construction

Yuan

Zhu

Zheng³

et al. 2019

Advances in Civil Engineering

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Numerical investigation of mechanical behavior of carbon fiber-reinforced polymer- (CFRP-) reinforced concrete beam after high-temperature action of asphalt paving construction was carried out in this study. The debonding failure of the CFRP plate-concrete interface was simulated by introducing the double debonding criterion. In order to compare with simulation results, specimens with different pavement schemes were tested to obtain experimental data. The load-deflection relationship, CFRP strain distribution, and crack propagation of specimens were compared with the numerical simulation results. The numerical simulation results showed good agreement with the experimental results. Additionally, the interface bonding stress distribution model and the calculation formula of the debonding bearing capacity were proposed. The proposed calculation model was proved to have good accuracy in predicting the strain of intermediate cracking debonding and the debonding bearing capacity of the CFRP-reinforced concrete beam after high-temperature action.

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“…Through parameter adjustment, the linear structural model provides an efficient way to approximate the modal frequency and damping, and compute the structural response if the conditions are similar to experimental ones [1][2][3][4][5][6]. However, there are two major problems with this approach.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Bolted Joint Dynamics Based on the Thin-Layer Element of Nonlinear Material

Sun¹,

Zhao²,

Liang³

et al. 2019

ACSM

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In factory-assembled structures, the bolted joint is the cause of local energy dissipation and flexibility, and its dynamics influences the dynamics of the whole structure. This paper puts forward a method to simulate the dynamics of bolted joint based on the thin-layer element (TLE) of nonlinear material. First, a finite-element model was built for an isolated bolted joint. Then, the tangential force-displacement curve of the bolted joint was obtained through an experiment on a universal testing machine (UTM) to reflect the features of the joint. On this basis, the response surface methodology (RSM) and the genetic algorithm (GA) were combined to identify the parameters of the material in the finite-element model. The simulated force-displacement curve agrees well with that measured through experiment. Our approach facilitates the precise prediction of the dynamics of factory-assembled structures with complex joints.

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Prediction of Modal Damping of FRP-Honeycomb Sandwich Panels with Arbitrary Geometries

Cited by 4 publications

References 13 publications

Crack and mechanical behavior of CFRP plate-reinforced bridge roofs under high temperature with different anchoring measures

Crack and mechanical behavior of CFRP plate-reinforced bridge roofs under high temperature with different anchoring measures

Experimental and Numerical Investigation on Carbon Fiber‐Reinforced Polymer‐Strengthened Concrete Beam after High‐Temperature Action of Asphalt Paving Construction

Prediction of Bolted Joint Dynamics Based on the Thin-Layer Element of Nonlinear Material

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