dc.contributor.author | Zhang, G | |
dc.contributor.author | Ghita, OR | |
dc.contributor.author | Lin, C | |
dc.contributor.author | Evans, K | |
dc.date.accessioned | 2017-08-21T07:27:45Z | |
dc.date.issued | 2017-08-17 | |
dc.description.abstract | This paper introduces a novel extrusion process for manufacturing helical auxetic yarn (HAY). A range of semi-coextruded HAYs have been manufactured in a cost-effective, consistent and readily usable form. The semi-coextruded HAYs were compared to the conventional spun yarns in terms of tensile properties and auxetic behavior. The results show the presence of the auxetic effect in newly fabricated semi-coextruded HAYs. Similar to the traditional spun HAYs, the new HAYs are sensitive to parameters such as the initial wrap angle, the core/wrap diameter ratio and component moduli. Importantly, a few new manufacturing parameters have been identified for tailoring the auxetic behavior of the semi-coextruded HAYs. The semi-coextruded HAYs are auxetic when an instantaneous true Poisson’s ratio analysis method is applied. The semi-coextruded HAYs give a larger maximum negative Poisson’s ratio than the conventional HAYs due to the advantages of the pre-formed helical wrap structure. | en_GB |
dc.description.sponsorship | The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work is supported by the UK Engineering and Physical Sciences Research Council (EPSRC Grant No. EP/J004553/1). | en_GB |
dc.identifier.citation | First Published August 17, 2017, pp. 1 - 12 | en_GB |
dc.identifier.doi | 10.1177/0040517517725125 | |
dc.identifier.uri | http://hdl.handle.net/10871/28995 | |
dc.language.iso | en | en_GB |
dc.publisher | SAGE Publications | en_GB |
dc.rights | (c) The Author(s) 2017 | en_GB |
dc.subject | auxetic | en_GB |
dc.subject | fibers | en_GB |
dc.subject | mechanical properties | en_GB |
dc.subject | deformation | en_GB |
dc.subject | extrusion | en_GB |
dc.title | Large-scale manufacturing of helical auxetic yarns using a novel semi-coextrusion process | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2017-08-21T07:27:45Z | |
dc.identifier.issn | 0040-5175 | |
dc.description | This is the author accepted manuscript. The final version is available from SAGE Publications via the DOI in this record. | en_GB |
dc.identifier.eissn | 1746-7748 | |
dc.identifier.journal | Textile Research Journal | en_GB |