Z-pinning: Difference between revisions
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'''Z-pinning''' is a technique to insert reinforcing fibres (also called Z-pins or Z-fibres) along the [[Cartesian coordinate system|Z-direction]] of continuous [[fibre-reinforced plastic]]s.<ref name="zpinningpaper">{{cite web | author = Partridge, Ivana K. ''et al.'' | title = Manufacture and performance of Z-pinned composites | work = Advanced polymeric materials: structure-property relationships, CRC Press ISBN 1-58716-047-1 [chapter 3] | year = 2003}}</ref> Z-pins can be made of metal or precured unidirectional composite fibres. It is designed for use within |
'''Z-pinning''' is a technique to insert reinforcing fibres (also called Z-pins or Z-fibres) along the [[Cartesian coordinate system|Z-direction]] of continuous [[fibre-reinforced plastic]]s.<ref name="zpinningpaper">{{cite web | author = Partridge, Ivana K. ''et al.'' | title = Manufacture and performance of Z-pinned composites | work = Advanced polymeric materials: structure-property relationships, CRC Press ISBN 1-58716-047-1 [chapter 3] | year = 2003}}</ref> Z-pins can be made of metal or precured unidirectional composite fibres. It is designed for use within [[pre-preg]] technology; there is extensive experimental evidence that Z-pinning dramatically improves the resistance of the composite structure to [[delamination]].<ref name="zpinningdelamination">{{cite web | author = Partridge, Ivana K. ''et al.'' | title = Delamination resistant laminates by Z-Fiber® pinning | doi = 10.1016/j.compositesa.2004.06.029 | work = Composites Part A | year = 2005 | month = January}}</ref> |
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Several ways of inserting Z-pins have been developed to date. One method involves the use of an ultrasonic hammer that forces the Z-pins through the uncured preform while inducing high frequency vibrations to them. The vibrating chamfered tip of the Z-pins locally heats up and softens the resin allowing the Z-fibre to penetrate the preform with minimal disruption of the long fibres. |
Several ways of inserting Z-pins have been developed to date. One method involves the use of an ultrasonic hammer that forces the Z-pins through the uncured preform while inducing high frequency vibrations to them. The vibrating chamfered tip of the Z-pins locally heats up and softens the resin allowing the Z-fibre to penetrate the preform with minimal disruption of the long fibres. |
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Revision as of 17:30, 25 February 2010
Z-pinning is a technique to insert reinforcing fibres (also called Z-pins or Z-fibres) along the Z-direction of continuous fibre-reinforced plastics.[1] Z-pins can be made of metal or precured unidirectional composite fibres. It is designed for use within pre-preg technology; there is extensive experimental evidence that Z-pinning dramatically improves the resistance of the composite structure to delamination.[2]
Several ways of inserting Z-pins have been developed to date. One method involves the use of an ultrasonic hammer that forces the Z-pins through the uncured preform while inducing high frequency vibrations to them. The vibrating chamfered tip of the Z-pins locally heats up and softens the resin allowing the Z-fibre to penetrate the preform with minimal disruption of the long fibres.
See also
References
- ^ Partridge, Ivana K.; et al. (2003). "Manufacture and performance of Z-pinned composites". Advanced polymeric materials: structure-property relationships, CRC Press ISBN 1-58716-047-1 [chapter 3].
{{cite web}}: Explicit use of et al. in:|author=(help); Missing or empty|url=(help) - ^ Partridge, Ivana K.; et al. (2005). "Delamination resistant laminates by Z-Fiber® pinning". Composites Part A. doi:10.1016/j.compositesa.2004.06.029.
{{cite web}}: Explicit use of et al. in:|author=(help); Missing or empty|url=(help); Unknown parameter|month=ignored (help)
External links
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