Clean wet-filament winding – Part 1: design concept and simulations

Pandita, SD; Irfan, Muhammad Shafiq; Machavaram, Venkata R.; Shotton-Gale, N.; Mahendran, Ramani S.; Wait, CF; Paget, MA; Harris, Don; Leek, Colin; Fernando, Gerard Franklyn

doi:10.1177/0021998312440474

Cited by 21 publications

(21 citation statements)

References 17 publications

(24 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Khalili and Jahanmehr mentioned the “winding speed” as one of the optimum conditions to promote the composite pressure vessel strength. Also, Pandita et al considered the lower “winding speed” to be more appropriate for the degree of fiber bundle impregnation. The decreasing trend of response variable CE as a result of changing the “cure cycle” indicates that increasing the temperature creates more micro‐cracks in resin and decreases the cylinder strength .…”

Section: Resultsmentioning

confidence: 99%

Buckling strength optimization of fabrication factors of composite lattice cylinders using experimental‐statistical method (Taguchi)

et al. 2018

View full text Add to dashboard Cite

The effects of fabrication factors on the maximum buckling strength of composite lattice cylinders using experimental–statistical method are investigated. Composite lattice cylinders are fabricated using a silicone rubber mandrel, an automatic filament winding machine and autoclave. Design of experiments has been done using the Taguchi method and the orthogonal array L9 is used. The effects of four fabrication factors including “fiber tension”, “winding speed”, “cure cycle”, and “type of fiber” (Aramid, Glass, Carbon) are considered, separately, on the two response variables including the “specific maximum carried load” (SMCL) and the “compressive efficiency” (CE) of the structure. The analysis of the test results is done by analysis of variance. The results indicate that the factors “type of fiber” and “fiber tension” have predominant effects on the SMCL response variable, respectively, and the effects of the two factors “winding speed” and “cure cycle” are not significant. Also, the factors “type of fiber”, “fiber tension”, and “winding speed” are more effective factors on the CE response variable, respectively, and the effect of the factor “cure cycle” is insignificant. In this research, the optimization of the fabrication factors is carried out for the response variable CE. For validation purpose, the result from the buckling test of the optimum fabricated sample is checked to be fallen within the estimated range predicted using the Taguchi method. After optimization of the fabrication factors, it is observed that the buckling strength of the composite lattice cylinder made of Glass/Epoxy is possible to be increased up to 144%. POLYM. COMPOS., 40:1850–1861, 2019. © 2018 Society of Plastics Engineers

show abstract

Section: Resultsmentioning

confidence: 99%

Buckling strength optimization of fabrication factors of composite lattice cylinders using experimental‐statistical method (Taguchi)

et al. 2018

View full text Add to dashboard Cite

show abstract

“…[8][9][10][11] A different set of modifications, referred to as 'clean filament winding', have also been reported in detail. [12][13][14][15][16][17] The reduction of waste (resin, solvent) and fewer emissions to the atmosphere are emphasized in these works. The resin bath is replaced with a combination of a resin impregnation unit and spreading stations for tow bundles.…”

Section: Filament Windingmentioning

confidence: 99%

The effect of processing on the microstructure of hoop-wound composite cylinders

Lasn

Mulelid

2020

Journal of Composite Materials

View full text Add to dashboard Cite

Fibre-reinforced polymer composites are increasingly used to make pipes and pressure vessels. The relationship between wet-winding manufacturing, composite microstructure, and the mechanical performance is complex due to many process parameters and material properties involved. Efficient manufacturing aspirations however drive process innovations that include new, radically different tow impregnation methods. In this work, the process–property–performance relationship is experimentally construed for hoop-wound carbon fibre/epoxy composite cylinders. The difference between cylinders produced by a new tow impregnation system and cylinders from the reference impregnation system was investigated. Winding speed and cylinder wall thickness were considered as two additional variables. The results indicate that, within current scope, composite microstructure is relatively insensitive to the winding speed and to final cylinder thickness. Meanwhile, un-optimized changes for tow impregnation affect the void content, the size distribution of voids and the interlaminar failure mode in short beam shear.

show abstract

“…The trajectory of a roving through the impregnator is illustrated in Figure 3(a); a ribbon of spread rovings from the fibre spreading unit was drawn through the resin impregnator. The resin impregnator was designed to inject the resin directly into the spread rovings, 8,9 and at the same time, facilitate pin-based impregnation. [10][11][12] After the rovings were traversed under the resin injector, their trajectory was changed as the partially impregnated fibres were passed over a pin initially and then under two further pins where they submerge in the miniature reservoir.…”

Section: Resin Impregnatormentioning

confidence: 99%

A modified pultrusion process

Irfan

Shotton-Gale

Paget

et al. 2016

Journal of Composite Materials

View full text Add to dashboard Cite

This paper reports on a modified pultrusion process where the conventional resin bath was replaced with a customdesigned, enclosed resin impregnation unit. A feature of this modified production process is that the rovings were spread, prior to impregnation, using a compact fibre spreading unit. The resin impregnator was designed to accommodate 60 rovings of 2400 tex E-glass. The design features enabled specified modes of impregnation to be enacted including, resin-injection, pin-impregnation, capillary-impregnation and compaction. The impregnator was designed to accept pre-mixed resin from a pneumatically activated pressure-pot or a custom-designed resin delivery system. Pultrusion trials were conducted on a commercial machine using a conventional resin bath, the pressure-pot and the impregnation unit. The physical, mechanical and thermo-mechanical properties of the composites pultruded using the modified technique were marginally superior to those manufactured using the conventional resin bath. However, the environmental benefits of the modified pultrusion process were demonstrated to be significant.

show abstract

Clean wet-filament winding – Part 1: design concept and simulations

Cited by 21 publications

References 17 publications

Buckling strength optimization of fabrication factors of composite lattice cylinders using experimental‐statistical method (Taguchi)

Buckling strength optimization of fabrication factors of composite lattice cylinders using experimental‐statistical method (Taguchi)

The effect of processing on the microstructure of hoop-wound composite cylinders

A modified pultrusion process

Contact Info

Product

Resources

About