Numerical Parametric Study and Design of Pultruded GFRP Composite Channel Columns

This article reports the finite element (FE) investigation of the axial capacities of pultruded fiber-reinforced polymer (PFRP) composite channel columns. The nonlinear finite element model (FEM) was developed by using the ABAQUS package for glass fiber-reinforced polymer (GFRP) composite channel co...

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Bibliographic Details
Published in:Sustainability 2023-01, Vol.15 (1), p.837
Main Authors: Anbarasu, M, Kasiviswanathan, M, Kathiresan, M, Mohan Ganesh, G
Format: Article
Language:English
Subjects:
Axial loads
Boundary conditions
Composite materials
Concrete
Design
Fiber composites
Fiber reinforced polymers
Geometry
Glass fiber reinforced plastics
Glass fibers
Guidelines
Initial geometric imperfections
Investigations
Materials research
Mathematical models
Numerical analysis
Parametric statistics
Polymers
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Summary:This article reports the finite element (FE) investigation of the axial capacities of pultruded fiber-reinforced polymer (PFRP) composite channel columns. The nonlinear finite element model (FEM) was developed by using the ABAQUS package for glass fiber-reinforced polymer (GFRP) composite channel columns, which included geometric and initial geometric imperfections. The developed FEMs were verified against an experimental result available in the literature for GFRP channel columns. The validated FEMs were used to carry out the parametric study comprising 61 FE models to investigate the effect of different geometries, plate slenderness and the length of members on the axial capacities of GFRP pultruded channel columns. The results obtained from the parametric study were used to examine the accuracy of the current Italian guidelines, American pre-standard and the Direct Strength Method (DSM) proposed in the literature for GFRP channel profiles. Based on the obtained results, the suitability of the current design guidelines is assessed and, also, a new set of design equations is proposed to estimate the axial capacity of the pultruded GFRP channel columns. The new proposed set of reliable design equations witnessed a less scattered and a high degree of accuracy in determining the axial load capacity of the pultruded GFRP composite channel columns.
ISSN:2071-1050
2071-1050
DOI:10.3390/su15010837