Compressive Local Buckling of Pultruded GFRP I-Sections: Development and Numerical/Experimental Evaluation of an Explicit Equation

Cardoso, Daniel C.T.; Harries, Kent A.; Batista, Eduardo de Miranda

doi:10.1061/(asce)cc.1943-5614.0000501

Cited by 34 publications

(27 citation statements)

References 25 publications

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“…For an I-section column, according to the formulation proposed by Cardoso et al (2015), the buckling coefficient appearing in Equation (6), k cr,c , takes the following form:…”

Section: Compressionmentioning

confidence: 99%

“…It is worth noting that Equation (7) assumes the same material properties for all cross-section segments. However, the variational formulation used by Cardoso et al (2015) to obtain Equation (7) can be modified to include different stiffnesses and thickness for web and flange panels. The accuracy of Equation (7) is comparable with that of very well known formulations derived from a discrete plate analysis, i.e., considering each panel as an independent plate in unidirectional compression and elastically restrained along the longitudinal edges in common with the adjacent panels.…”

Section: Compressionmentioning

confidence: 99%

“…In particular, experimental tests and/or numerical analyses like those performed by Laudiero et al (2014) are recommended for estimating c N . The use of a variational approach like that used by Cardoso et al (2015) is recommended for estimating k cr,c . For example, similarly derived closed-form expressions for k cr,c in the case of box, angle-and Csections were presented by Cardoso et al (2014).…”

Section: Compressionmentioning

confidence: 99%

“…Using an approach analogous to that applied by Cardoso et al (2015) to PFRP columns, but taking account of (1) different material properties and (2) different thicknesses for web and flanges, Ascione et al (2016) developed a closed-form expression for the critical stress for I-beams. Compared with other equations available in the literature, this expression provides the best correlation with the published experimental results on PFRP beams.…”

Section: Bendingmentioning

confidence: 99%

See 3 more Smart Citations

Updating Italian Design Guide CNR DT-205/2007 in View of Recent Research Findings: Requirements for Pultruded FRP Profiles

Minghini

Tullini²,

Ascione³

2016

American Journal of Engineering and Applied Sciences

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A discussion on some design rules for pultruded fiber-reinforced plastic (PFRP) profiles reported by guideline CNR DT-205/2007 from National Research Council of Italy is presented in the paper. At eight years after approval of this technical document, several changes and improvements are required following recent research findings and supplemental design rules should be incorporated into a future revision. The general framework for the design of columns and beams is outlined. A new closed-form expression for the local buckling moment for beams in majoraxis bending is presented.

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“…For an I-section column, according to the formulation proposed by Cardoso et al (2015), the buckling coefficient appearing in Equation (6), k cr,c , takes the following form:…”

Section: Compressionmentioning

confidence: 99%

Section: Compressionmentioning

confidence: 99%

Section: Compressionmentioning

confidence: 99%

Section: Bendingmentioning

confidence: 99%

See 2 more Smart Citations

Updating Italian Design Guide CNR DT-205/2007 in View of Recent Research Findings: Requirements for Pultruded FRP Profiles

Minghini

Tullini²,

Ascione³

2016

American Journal of Engineering and Applied Sciences

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“…16 Cardoso et al (2015) developed a simple accurate equation to determine the local buckling critical stress of pultruded GFRP I-sections. 17 It appears that the current literature is still scanty about the dynamic behavior of such FRP structural forms.…”

Section: Introductionmentioning

confidence: 99%

Improved Numerical Modelling of Fiber Reinforced Plastics I-Beam from Experimental Modal Testing and Finite Element Model Updating

Mishra¹,

Mohammed²,

Chakraborty³

2018

IJAV

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Fiber reinforced plastics (FRP) is increasingly being used in infrastructural applications like bridges, chemical plants etc., where the environment can limit the expected service life of structures made of conventional materials such as reinforced concrete, steel or timber. Advantages of FRP over conventional constructional materials are its high specific strength and specific stiffness, ease with which it can be moulded to various shapes, corrosion resistance, lower lifecycle cost, durability etc. Estimation of accurate dynamic responses of FRP structures is very important from their operation point of view. Such dynamic responses are functions of material properties, boundary conditions, geometry and applied loading. FRP being an anisotropic and layered composite material, a large number of elastic material property parameters are to be determined. Moreover, its structural fabrication and material fabrication at constituent level being one unified process, the actual existing material property parameters may vary considerably from those specified in established standards or determined from characterisation tests. The present approach attempts at establishing a non-destructive technique based on experimental modal testing and finite element model updating to estimate the elastic material parameters of an 'I' beam made of FRP, thereby making the prediction of dynamic responses more accurate. Static load test on the beam and characterisation tests on samples cut from actual structure are conducted to assess the performance of this updating exercise. The current approach can also be used to non-destructively monitor degradations of elastic material properties over time and thus can be used for health monitoring of existing FRP structures.

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Fibre Reinforced Polymer Columns with Bolted Sleeve Joints under Eccentric Compression

Xie¹,

Bai²,

Yao³

et al. 2023

Composites for Building Assembly

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Compressive Local Buckling of Pultruded GFRP I-Sections: Development and Numerical/Experimental Evaluation of an Explicit Equation

Cited by 34 publications

References 25 publications

Updating Italian Design Guide CNR DT-205/2007 in View of Recent Research Findings: Requirements for Pultruded FRP Profiles

Updating Italian Design Guide CNR DT-205/2007 in View of Recent Research Findings: Requirements for Pultruded FRP Profiles

Improved Numerical Modelling of Fiber Reinforced Plastics I-Beam from Experimental Modal Testing and Finite Element Model Updating

Fibre Reinforced Polymer Columns with Bolted Sleeve Joints under Eccentric Compression

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