The Mechanics of Stretch Breaking

Doĝu, Ismail

doi:10.1177/004051757204200707

Cited by 6 publications

(1 citation statement)

References 5 publications

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“…Though they made ground over the attempts of the 1970s, the production of both Highform and Disco was ceased because of high cost and lack of demand. Towards the end of the 1980s, DuPont developed a technique that utilised the stretch breaking process that had been in use for a long time in the textile industry [4]. The process relies on the breakage of a continuous tow of fibres at natural weak points, typically reducing fibre lengths to 25-150 mm.…”

Section: Introductionmentioning

confidence: 99%

Characterisation of Ductile Prepregs

2012

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This study is focused on the analysis of micro-perforated prepregs created from standard, off the shelf prepregs modified by a particular laser process to enhance ductility of prepregs for better formability and drapability. Fibres are shortened through the use of laser cutting in a predetermined pattern intended to maintain alignment, and therefore mechanical properties, yet increase ductility at the working temperature. The increase in ductility allows the product to be more effectively optimised for specific forming techniques. Tensile tests were conducted on several specimens in order to understand the ductility enhancement offered by this process with different micro-perforation patterns over standard prepregs. Furthermore, the effects of forming temperature was also analysed to assess the applicability of this material to hot draping techniques and other heated processes.

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Section: Introductionmentioning

confidence: 99%

Characterisation of Ductile Prepregs

2012

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Mechanical properties of wool fiber in the stretch breaking process

Kwak

Lee

et al. 2007

Fibers Polym

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Development of a process chain for the production of high-performance 100% metal spun yarns based on planed metal staple fibres

et al. 2020

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The high potential of metal fibres for various technical applications including filtration, electrical, heat and cut resistance or composite applications is still not fully exploited due to their high production costs. This paper presents the development of a new process chain for spinning 100% metal spun yarns from planed metal staple fibres as an alternative to conventional metal fibres. The developed spinning process chain begins with a stretch breaking process to create metal staple fibre sliver with a narrow fibre length distribution and defined mean fibre length. Next, a drafting process on a draw frame is performed in order to produce highly uniform metal staple fibre sliver. This is the basis for the development of a flyer spinning process to realise high-performance metal spun yarn. Finally, the fundamental relationships between fibre properties, processing characteristics, semi-finished product properties and the performance of the resulting metal spun yarns are described in detail.

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The Mechanics of Stretch Breaking

Cited by 6 publications

References 5 publications

Characterisation of Ductile Prepregs

Characterisation of Ductile Prepregs

Mechanical properties of wool fiber in the stretch breaking process

Development of a process chain for the production of high-performance 100% metal spun yarns based on planed metal staple fibres

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