Improving Local Buckling Capacity of Pultruded I-Beams Using Flange Lips

Ragheb, Wael F.

doi:10.1177/0731684407079522

Cited by 6 publications

(3 citation statements)

References 7 publications

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“…To incorporate these effects in the theoretical analysis, initial imperfection factors were added to (4) which then become ( 5) and ( 6), respectively, over the domains [0, a] and [a, L/2]. (6) where v0i and φ0i are initial vertical and rotation imperfections at the mid-span of the beam. The following boundary and symmetry conditions are applied to Equations 1, 2, 5, and 6 and then solved simultaneously using the central finite-difference method:…”

Section: Theoretical Studymentioning

confidence: 99%

“…Various beam spans and geometries were experimentally tested in order to verify derived theoretical equations based on nonlinear plate theory. Ragheb [6] in an effort to improve the local buckling capacity of an FRP I-beam, added flange lips to the compression flange. The failure mode for the member was buckling, so finding a way to increase the buckling load would increase the load capacity of the beam.…”

Section: Introductionmentioning

confidence: 99%

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Lateral-Torsional Instability and Biaxial Bending of Imperfect FRP I-Beams

Knorowski¹,

Bondi

2022

EJENG

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This paper presents the outcome of a theoretical and experimental study of the behavior of Fiber Reinforced Polymer (FRP) I-beams exposed to lateral-torsional instability or when subjected to biaxial bending. Laboratory experiments involved the application of vertical and horizontal static loads to a 4 x 4 x ¼ in. I-beam with various lengths and the resulting deflections were recorded. Governing biaxial flexure and torsion differential equations were modified to account for the presence of initial imperfections and subsequently solved using a central finite-difference scheme. The theoretical predictions of the beam behavior were found to be in good agreement with what was observed in the laboratory.

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Section: Theoretical Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Lateral-Torsional Instability and Biaxial Bending of Imperfect FRP I-Beams

Knorowski¹,

Bondi

2022

EJENG

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“…219,227,247,267,270,306,312,331,340,345,406,440,479,481,491,503,517,561,562,575,576,592,593,629,634,664,666,695,701,752,781,803,857,870,977,1001,1003 …”

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confidence: 99%

Optimum Design of Composite Structures: A Literature Survey (1969–2009)

Sonmez

2016

Journal of Reinforced Plastics and Composites

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Optimum structural design of composites is a research subject that has drawn the attention of many researchers for more than 40 years with a growing interest. In this study, a review of the literature on this subject is presented. The papers are classified according to the type of the composite structure optimized in those studies, the loading conditions, the objective function, the structural analysis method, the design variables, the constraints, the failure criteria, and the search algorithm used by the researchers.

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