TY - JOUR
T1 - Auxetic behavior of warp knitted fabric under repeating tension
AU - Zhao, Shuaiquan
AU - Chang, Yuping
AU - Yang, Yadie
AU - Zhang, Minglonghai
AU - Hasan, Kamrul
AU - Hu, Hong
N1 - Funding Information:
The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the Research Grants Council of Hong Kong Special Administrative Region Government for the GRF project (grant number: 15209616).
Funding Information:
The authors would like to acknowledge help from the Industrial Center of the Hong Kong Polytechnic University. The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the Research Grants Council of Hong Kong Special Administrative Region Government for the GRF project (grant number: 15209616).
Publisher Copyright:
© The Author(s) 2021.
PY - 2021/8
Y1 - 2021/8
N2 - In our previous study, a novel class of auxetic warp knitted fabrics were developed and their auxetic behaviors were studied under a single tensile test. However, during daily use, the fabrics are usually subjected to repeating tension rather than single tension. Therefore, the durability of the fabrics’ auxetic performance is of great importance. So far, the auxetic behavior of fabrics under repeating tension has not systematically been investigated. In this paper, we report a study on the auxetic behavior of warp knitted fabrics under repeating tension. All the fabric samples were subjected to a repeating tensile test within a tensile strain of 25% until 100 tensile cycles. The results show that the fabrics can keep their auxetic effect in both course and wale testing directions after 100 tensile cycles, and the auxetic effect in the wale direction is retained longer under higher tensile strains than that under lower tensile strains with the increase of tensile cycles. The results also indicate that auxetic stability in the course direction is much better than that in the wale direction. We hope that this study can offer useful information to improve the auxetic stability of auxetic fabrics for practical use.
AB - In our previous study, a novel class of auxetic warp knitted fabrics were developed and their auxetic behaviors were studied under a single tensile test. However, during daily use, the fabrics are usually subjected to repeating tension rather than single tension. Therefore, the durability of the fabrics’ auxetic performance is of great importance. So far, the auxetic behavior of fabrics under repeating tension has not systematically been investigated. In this paper, we report a study on the auxetic behavior of warp knitted fabrics under repeating tension. All the fabric samples were subjected to a repeating tensile test within a tensile strain of 25% until 100 tensile cycles. The results show that the fabrics can keep their auxetic effect in both course and wale testing directions after 100 tensile cycles, and the auxetic effect in the wale direction is retained longer under higher tensile strains than that under lower tensile strains with the increase of tensile cycles. The results also indicate that auxetic stability in the course direction is much better than that in the wale direction. We hope that this study can offer useful information to improve the auxetic stability of auxetic fabrics for practical use.
KW - Auxetic fabric
KW - knitted fabric
KW - negative Poisson’s ratio
KW - repeating tensile test
UR - http://www.scopus.com/inward/record.url?scp=85100010338&partnerID=8YFLogxK
U2 - DOI: 10.1177/0040517521989277
DO - DOI: 10.1177/0040517521989277
M3 - Journal article
VL - 91
SP - 1732
EP - 1741
JO - Textile Research Journal
JF - Textile Research Journal
IS - 15-16
ER -