Numerical and experimental study of shear stress behavior of NBR and ASTM standard test specimens for FRP-wood bonds

Ribeiro, Aléxia Brandão; Mascia, Nilson Tadeu

doi:10.1016/j.compstruct.2019.111066

Cited by 11 publications

(2 citation statements)

References 7 publications

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“…Ling et al [117] found that the shear strengthening effect of CFRP is generally higher than that of GFRP, and the shear capacity of single-layer and double-layer timber beams strengthened by longitudinal unidirectional CFRP increased by 32.9% and 68.6%, respectively. Ribeiro et al [118] found that the shear stress at the center was less than the theoretical value. FRP reinforcement can effectively enhance the shear strength of timber beams and the reinforcement effect depends on the property of FRP itself, the amount of FRP, and the reinforcement method.…”

Section: Shear Behavior Of Frp Reinforced Timber Beamsmentioning

confidence: 89%

A Review on Strengthening of Timber Beams Using Fiber Reinforced Polymers

Jian¹,

Cheng²,

Li³

et al. 2022

Journal of Renewable Materials

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Fiber reinforced polymer (FRP) has been used in the construction industry because of its advantages such as high strength, light weight, corrosion resistance, low density and high elasticity. This paper presents a review of bonding techniques adopted to strengthen timber beams using FRP to achieve larger spans. Different methods of bonding between FRP and timber beams have been summarized with a focus on the influencing factors and their effects as well as relevant bond-slip models proposed for fundamental understanding. Experimental investigations to evaluate the flexural performance of timber beams strengthened by FRP bars, sheets and wraps have also been critically reviewed to identify key influencing parameters. Limited research available on the shear performance of FRP reinforced timber beams have been analyzed to determine the influencing factors of the shear performance in timber-FRP beams. The paper finally presents an overall summary of the current-state-of-the-art and proposes some future research directions in the field.

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Section: Shear Behavior Of Frp Reinforced Timber Beamsmentioning

confidence: 89%

A Review on Strengthening of Timber Beams Using Fiber Reinforced Polymers

Jian¹,

Cheng²,

Li³

et al. 2022

Journal of Renewable Materials

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show abstract

“…The normal stress component represents the tensile or compressive stress on the corresponding section. As per the equivalent law of the shearing stress, the shear stress can be expressed by τ xy , τ yz and τ zx [ 31 , 32 ]. The expression for the stress tensor σ is as follows:

…”

Section: Theoretical Research On Anisotropymentioning

confidence: 99%

Spatial Constitutive Modeling of AA7050-T7451 with Anisotropic Stress Transformation

Wang

et al. 2022

Materials

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The mechanical properties of anisotropic materials are generally characterized based on the orthotropy or transverse isotropy. However, the two-dimensional plane stress problems cannot comprehensively characterize the anisotropy of materials. In this study, based on the theory of elasticity and the transformation of the three-dimensional space coordinate system, combined with the projection relationship of the Cauchy stress tensor of an arbitrary section, the transformation relationship of the elastic modulus, shear modulus, and stress–strain between the orthogonal and load coordinate systems are obtained. The orthotropic Johnson-Cook (JC) constitutive model of AA7050-T7451 aluminum alloy is modified by fitting, and the constitutive relationship at any spatial angle is theoretically calculated by combining the obtained spatial coordinate transformation matrix. The generated spatial constitutive model is verified and modified through experiments. The results demonstrate that the theoretical mechanical properties and the modified spatial constitutive model can accurately reflect the effect of the spatial angle on the material stress distribution.

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Shear properties of composite cross-laminated bamboo panels

Xia

Shi

et al. 2022

Eur. J. Wood Prod.

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Numerical and experimental study of shear stress behavior of NBR and ASTM standard test specimens for FRP-wood bonds

Cited by 11 publications

References 7 publications

A Review on Strengthening of Timber Beams Using Fiber Reinforced Polymers

A Review on Strengthening of Timber Beams Using Fiber Reinforced Polymers

Spatial Constitutive Modeling of AA7050-T7451 with Anisotropic Stress Transformation

Shear properties of composite cross-laminated bamboo panels

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