An experimental study on mechanical properties of GFRP braid-pultruded composite rods

In this work, a conventional textile braiding machine was modified and added to a pultrusion line in order to produce glass fiber reinforced composite rods by braiding-pultrusion technique. Braid-pultruded (BP) rods were produced with three braid roving linear densities and also with three different...

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Format: Article
Language:English
Published: Budapest University of Technology 2009-09-01
Series:eXPRESS Polymer Letters
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Online Access:http://www.expresspolymlett.com/letolt.php?file=EPL-0001025&mi=cd
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collection DOAJ
description In this work, a conventional textile braiding machine was modified and added to a pultrusion line in order to produce glass fiber reinforced composite rods by braiding-pultrusion technique. Braid-pultruded (BP) rods were produced with three braid roving linear densities and also with three different braid angles. To study the influence of overbraiding on mechanical properties of pultruded rods, unidirectional (UD) rods, without braided fabric, were produced, as well. All rod types were subjected to tensile, bending and torsion tests. The experimental results showed that BP rods have considerably higher shear modulus, but lower tensile modulus and flexural rigidity than those of UD pultruded rods, when fiber volume fraction is kept constant. Moreover, rods produced with higher braid roving linear densities had better torsional, but lower tensile and flexural properties. The highest shear modulus was observed in BP rods with braid angle of 45°.
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spelling doaj.art-53259891a1ec4276b764b0c37d02463c2022-12-22T03:18:44ZengBudapest University of TechnologyeXPRESS Polymer Letters1788-618X2009-09-013956056810.3144/expresspolymlett.2009.70An experimental study on mechanical properties of GFRP braid-pultruded composite rodsIn this work, a conventional textile braiding machine was modified and added to a pultrusion line in order to produce glass fiber reinforced composite rods by braiding-pultrusion technique. Braid-pultruded (BP) rods were produced with three braid roving linear densities and also with three different braid angles. To study the influence of overbraiding on mechanical properties of pultruded rods, unidirectional (UD) rods, without braided fabric, were produced, as well. All rod types were subjected to tensile, bending and torsion tests. The experimental results showed that BP rods have considerably higher shear modulus, but lower tensile modulus and flexural rigidity than those of UD pultruded rods, when fiber volume fraction is kept constant. Moreover, rods produced with higher braid roving linear densities had better torsional, but lower tensile and flexural properties. The highest shear modulus was observed in BP rods with braid angle of 45°.http://www.expresspolymlett.com/letolt.php?file=EPL-0001025&mi=cdPolymer compositesMechanical propertiesBraidingPultrusionrod
spellingShingle An experimental study on mechanical properties of GFRP braid-pultruded composite rods
eXPRESS Polymer Letters
Polymer composites
Mechanical properties
Braiding
Pultrusion
rod
title An experimental study on mechanical properties of GFRP braid-pultruded composite rods
title_full An experimental study on mechanical properties of GFRP braid-pultruded composite rods
title_fullStr An experimental study on mechanical properties of GFRP braid-pultruded composite rods
title_full_unstemmed An experimental study on mechanical properties of GFRP braid-pultruded composite rods
title_short An experimental study on mechanical properties of GFRP braid-pultruded composite rods
title_sort experimental study on mechanical properties of gfrp braid pultruded composite rods
topic Polymer composites
Mechanical properties
Braiding
Pultrusion
rod
url http://www.expresspolymlett.com/letolt.php?file=EPL-0001025&mi=cd