Analysis of rate-dependent tensile properties of polypropylene fibres used in thermally bonded nonwovens
JOURNAL OF THE TEXTILE INSTITUTE, cilt.107, sa.9, ss.965-971, 2013 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 107 Sayı: 9
- Basım Tarihi: 2013
- Doi Numarası: 10.1080/00405000.2013.766391
- Dergi Adı: JOURNAL OF THE TEXTILE INSTITUTE
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.965-971
- Hacettepe Üniversitesi Adresli: Hayır
Özet
The stress-strain behaviour of polypropylene fibres is evaluated for various tensile strain rates. Fibre samples are extracted from a thermally bonded nonwoven and fixed in a low-load tensile test machine. A methodology is introduced to implement a constant true strain rate at high strain tests for conventional tensile test machines. The obtained results indicate that polypropylene fibres show a highly viscous behaviour, especially during the initial stage of load application. No significant difference in a tensile behaviour of fibres was observed for loading regimes with a constant true strain rate and a constant engineering strain rate.