Elastic analysis of interfacial stresses for the design of a strengthened FRP plate bonded to an RC beam

Guenaneche, Boucif; Krour, Baghdad; Tounsi, Abdelouahed; Fekrar, Abdelkader; Benyoucef, Samir; Bedia, E.A. Adda

doi:10.1016/j.ijadhadh.2010.06.003

Cited by 14 publications

(2 citation statements)

References 23 publications

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“…The amount of the strain transfer depends on the relative thickness and rigidity of the adhesive layer as compared to the host structure and the piezoelectric patch. The strain transfer problem for the case of a composite cross section undergoing bending was investigated earlier in [11][12][13][14][15][16] with the assumption of uniform strain distribution through the thickness of the bonded patch, which is valid if the patch is much thinner and more compliant than the host structure. A finite element formulation and solution for a three-dimensional patch is presented in [17].…”

Section: Strain Transfer Through the Bonding Layermentioning

confidence: 99%

The performance of a self-excited fluidic energy harvester

Akaydin¹,

Elvin²,

Andreopoulos³

2012

Smart Mater. Struct.

277

146

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The available power in a flowing fluid is proportional to the cube of its velocity, and this feature indicates the potential for generating substantial electrical energy by exploiting the direct piezoelectric effect. The present work is an experimental investigation of a self-excited piezoelectric energy harvester subjected to a uniform and steady flow. The harvester consists of a cylinder attached to the free end of a cantilevered beam, which is partially covered by piezoelectric patches. Due to fluid–structure interaction phenomena, the cylinder is subjected to oscillatory forces, and the beam is deflected accordingly, causing the piezoelectric elements to strain and thus develop electric charge. The harvester was tested in a wind tunnel and it produced approximately 0.1 mW of non-rectified electrical power at a flow speed of 1.192 m s−1. The aeroelectromechanical efficiency at resonance was calculated to be 0.72%, while the power per device volume was 23.6 mW m−3 and the power per piezoelectric volume was 233 W m−3. Strain measurements were obtained during the tests and were used to predict the voltage output by employing a distributed parameter model. The effect of non-rigid bonding on strain transfer was also investigated. While the rigid bonding assumption caused a significant (>60%) overestimation of the measured power, a non-rigid bonding model gave a better agreement (<10% error).

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Section: Strain Transfer Through the Bonding Layermentioning

confidence: 99%

The performance of a self-excited fluidic energy harvester

Akaydin¹,

Elvin²,

Andreopoulos³

2012

Smart Mater. Struct.

277

146

View full text Add to dashboard Cite

show abstract

“…Sandwich and laminated beams are typical applications in aerospace structures, while in civil engineering, steel-concrete beams ( Fabbrocino et al 2000Fabbrocino et al , 2002Faella et al 2003;Lam and Lobody 2005), woodconcrete beams (Clouston et al 2005;Fragiacomo and Ceccotti 2006) and concrete beams externally strengthened by fiber reinforced polymers (Qiao and Chen 2008;Bouchikhi et al 2003;Guenaneche et al 2010;Tounsi 2006;Ahmed and Kodur 2011) are often encountered. The mechanical performance of the layered composite structures depends not only on the material property of individual beam layers but also on the character of interfacial bonding.…”

Section: Introductionmentioning

confidence: 99%

2-D elasticity solution of layered composite beams with viscoelastic interlayers

Zhou

Liu

2015

Mech Time-Depend Mater

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This paper focuses on the mechanical properties of layered composite beams with viscoelastic interlayers. The exact two-dimensional elasticity theory is used to represent the deformation of each beam layer. The viscoelastic interlayer is described by the MaxwellWiechert model through the quasi-elastic approximation, which greatly simplifies the analytical process. The stress function with a series of undetermined coefficients depending on the time variable is derived for each beam layer. No matter how many layers the beam includes, the total solution can be obtained rapidly and efficiently by using the recursive matrix technique. The present method can give the exact stress and deformation distributions in the beam, which cannot be predicted by the approximate theories such as the one-dimensional Euler-Bernoulli theory. The convergence of the solution is numerically verified. A comparison study indicates that the present results are in agreement with those obtained from the finite element method; however, they have obvious differences from the results based on the Euler-Bernoulli theory for thick beams. Finally, the variations of stresses and displacements with respect to time in a five-layer beam are discussed in detail.

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Research Progress on the Torsion Behavior of Externally Bonded RC Beams: Review

Rajguru

Patkar

2022

Recent Trends in Construction Technology and Management

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Elastic analysis of interfacial stresses for the design of a strengthened FRP plate bonded to an RC beam

Cited by 14 publications

References 23 publications

The performance of a self-excited fluidic energy harvester

The performance of a self-excited fluidic energy harvester

2-D elasticity solution of layered composite beams with viscoelastic interlayers

Research Progress on the Torsion Behavior of Externally Bonded RC Beams: Review

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