| Title |
Inverse stress relaxation in textile yarns after the blockage of viscoelastic recovery |
| Another Title |
Atvirkštinė siūlų įrąžos relaksacija, kai užblokuojama jų ištįsos relaksacija. |
| Authors |
Pocienė, Rita ; Vitkauskas, Arvydas |
| Full Text |
|
| Is Part of |
Materials science = Medžiagotyra.. Kaunas : Technologija. 2007, vol. 13, no. 3, p. 240-244.. ISSN 1392-1320. eISSN 2029-7289 |
| Keywords [eng] |
Inverse relaxation ; Recovery ; Acetate ; Polyester ; Maxwell model |
| Abstract [eng] |
Viscoelastic properties of acetate and polyester multifilament yarns in the compound loading cycle are theoretically and experimentally studied and the features of inverse stress relaxation (IR) after the blockage of viscoelastic recovery of the yarns are revealed in the study. Modelling method of the processes at the referred loading cycle is proposed on the basis of generalized Maxwell model. Analysing the behaviour of the model possessing different relaxation time spectra it was found that the longer is free recovery of the model until its blockage the less is the resulting recovery power of the model. The duration of recovery is more sensitive to the changes in the amount of the resulting IR in the model possessing more short relaxation times. To prove the theoretical findings the experimental investigation was provided with acetate (16.6 tex) and polyester (15.6 tex) multifilament yarns analysing their behavior in the same loading cycle. The experiments confirmed basic theoretical findings. Some differences in the reaction of acetate and polyester yarn to the blockage of their viscoelastic recovery are shown. |
| Published |
Kaunas : Technologija |
| Type |
Journal article |
| Language |
English |
| Publication date |
2007 |
| CC license |
|
