Influence of Braid Carrier Tension on Carbon Fibre Braided Preforms

Roy, Sree Shankhachur; Zou, Wentao; Potluri, Prasad

doi:10.1007/978-3-319-29932-7_9

Cited by 2 publications

(1 citation statement)

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“…A multi-layer braided preform stack thickness build up with respect to a single layer thickness is not directly proportional. The change in total braid stack thickness can be quantified using nesting factor [14,15]. Thickness reduction of (±45°/0°) 5 braided layup due to nesting was 21% with a final stack thickness of~1.95 mm.…”

Section: Braided Preform and Composite Materials Characterizationmentioning

confidence: 99%

Tensile Response of Hoop Reinforced Multiaxially Braided Thin Wall Composite Tubes

2016

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This paper presents the tensile response of thin-walled composite tubes with multi-axial fibre architecture. A hybrid braid-wound layup has the potential to optimise the composite tube properties, however, stacking sequence plays a role in the failure mechanism. A braid-winding method has been used to produce stacked overwound braid layup [(±45°/0°) 5 /90°4] T. Influence of stacking sequence on premature failure of hoop layers has been reported. Under tensile loading, a cross-ply composite tube with the alternate stacking of hoop and axial fibre show hoop plies splitting similar to the overwound braided composite tube. However, splitting has been restricted by the surrounding axial plies and contained between the adjacent axial fibre tows. This observation suggests hoop layers sandwiched between braid layers will improve structural integrity. A near net shape architecture with three fibre orientation in a triaxial braid will provide additional support to prevent extensive damage for plies loaded in off-axis. Several notable observations for relatively open braid structures such as tow scissoring, high Poisson's ratio and influence of axial tow crimp on the strain to failure have been reported. Digital Image Correlation (DIC) in conjunction with surface strain gauging has been employed to capture the strain pattern.

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Section: Braided Preform and Composite Materials Characterizationmentioning

confidence: 99%