Elastic buckling strength for steel plates symmetrically strengthened with glass fiber reinforced polymer plates

2020 ◽  
Vol 47 (3) ◽  
pp. 337-353
Author(s):  
Sepideh Zaghian ◽  
Magdi Mohareb
Keyword(s):  
Glass Fiber ◽  
Present Model ◽  
Steel Plates ◽  
Fiber Reinforced Polymer ◽  
Elastic Buckling ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Polymer ◽  
Buckling Strength ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced

A plate finite element formulation is developed for the buckling analysis of steel plates symmetrically strengthened with glass fiber reinforced polymer (GFRP) plates. The solution idealizes the steel and GFRP as Kirchhoff plates while accounting for the shear-flexibility within the adhesive through a postulated zigzag displacement profile. The solution is then used to characterize the elastic buckling strength for steel plates strengthened with GFRP for corroded flanges subjected to compression, and for steel panels subjected to shear. The validity of the present model is assessed through comparisons with three-dimensional and shear deformable shell solutions. The capacity of the strengthened system is found sensitive to GFRP thickness but insensitive to the adhesive shear modulus. A design example is provided to illustrate how CAN-CSA S16-14 provisions for plate girder design can be integrated with the predictions of the present model to characterize the shear capacity of end panels strengthened with GFRP plates.

scholarly journals Influence of Bracing on Buckling Strength of Pultruded Glass Fiber Reinforced Polymer Frames

2020 ◽  
Vol 5 (10) ◽  
pp. 1237-1239
Author(s):  
Mojtaba B. Sirjani ◽  
Zia Razzaq
Keyword(s):  
Glass Fiber ◽  
Numerical Study ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Polymer ◽  
Axis Orientation ◽  
Buckling Strength ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced ◽  
Column Bases

A numerical study of the influence of structural bracing on the buckling strength of pultruded Glass Fiber Reinforced Polymer (GFRP) frames is presented. Although the influence of bracing on frames made from other materials such as steel have been studied in the past, this paper investigates the performance of pultruded GFRP portal frames with pinned or fixed column bases. Each frame is constructed with pultruded GFRP I-section members. The influence of I-section column major and minor axis orientation is also investigated. The results demonstrate the practical significance of bracing pultruded GFRP frames. The results show that the buckling loads for braced frames are seven to nine times greater than those for unbraced frames when the column bases are pinned. The corresponding gain in the buckling load capacity due to the addition of bracing is more than three times if the column bases are fixed.

scholarly journals Investigation into the Effect of Cutting Conditions in Turning on the Surface Properties of Filament Winding GFRP Pipe Rings

Machines ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 16
Author(s):  
Gabriel Mansour ◽  
Panagiotis Kyratsis ◽  
Apostolos Korlos ◽  
Dimitrios Tzetzis
Keyword(s):  
Surface Roughness ◽  
Glass Fiber ◽  
Process Parameters ◽  
Filament Winding ◽  
Numerical Control ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Polymer ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced

There are numerous engineering applications where Glass Fiber Reinforced Polymer (GFRP) composite tubes are utilized, such as desalination plants, power transmission systems, and paper mill, as well as marine, industries. Some type of machining is required for those various applications either for joining or fitting procedures. Machining of GFRP has certain difficulties that may damage the tube itself because of fiber delamination and pull out, as well as matrix deboning. Additionally, short machining tool life may be encountered while the formation of powder like chips maybe relatively hazardous. The present paper investigates the effect of process parameters for surface roughness of glass fiber-reinforced polymer composite pipes manufactured using the filament winding process. Experiments were conducted based on the high-speed turning Computer Numerical Control (CNC) machine using Poly-Crystalline Diamond (PCD) tool. The process parameters considered were cutting speed, feed, and depth of cut. Mathematical models for the surface roughness were developed based on the experimental results, and Analysis of Variance (ANOVA) has been performed with a confidence level of 95% for validation of the models.

Review on glass fiber reinforced polymer composites

2021 ◽  
Author(s):  
Priyadarsini Morampudi ◽  
Kiran Kumar Namala ◽  
Yeshwanth Kumar Gajjela ◽  
Majjiga Barath ◽  
Ganaparthy Prudhvi
Keyword(s):  
Glass Fiber ◽  
Polymer Composites ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Polymer ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced ◽  
Fiber Reinforced Polymer Composites

Simulation Behavior of Flexure in Reinforced Concrete Beam with Opening Reinforced with Glass Fiber Reinforced Polymer (GFRP)

2016 ◽  
Vol 857 ◽  
pp. 421-425
Author(s):  
Saif M. Thabet ◽  
S.A. Osman
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Glass Fiber ◽  
Concrete Beam ◽  
Reinforced Concrete Beam ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Polymer ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced

This paper presents an investigation into the flexural behaviour of reinforced concrete beam with opening reinforced with two different materials i.e., steel and Glass Fiber Reinforced Polymer (GFRP). Comparison study between the two different materials were carried out and presented in this study through non-linear Finite Element Method (FEM) using the commercial ABAQUS 6.10 software package. The performance of the opening beam reinforced with GFRP is influenced by several key parameters. Simulation analyses were carried out to determine the behavior of beam with opening subjected to monotonic loading. The main parameters considered in this study are size of opening and reinforcement diameter. The results show that GFRP give 23%-29% more ductility than steel reinforcement. The result also shows when the size of opening change from 200mm to 150mm or from 150mm to 100mm the ultimate load capacity increase by 15%. In general, good agreement between the Finite Element (FE) simulation and the available experimental result has been obtained.

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