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Details for article 5 of 63 found articles
| Title: |
A nonlinear mechanism for the extension of wool |
| Author: |
Dubro, D. W. |
| Appeared in: |
Journal of macromolecular science. Part B, Physics |
| Paging: | Volume 25 (1986) nr. 1-2 pages 21-35 |
| Year: |
1986-04-01 |
| Contents: |
Wool is a viscoelastic polymer with a nonlinear load-extension curve. Recent studies of the dynamic modulus of wool versus extension have suggested a new quantitative mechanism for extension which involves a stress transfer from the crystalline part of the fiber to the matrix during the α-β transformation, resulting in a thixotropic change in the stressed matrix. The thixotropic change has been found to be extension dependent, in contrast with standard viscoelastic theories which are time dependent. Analysis of the dynamic modulus of wool as a function of extension indicates that the α helices still contribute substantially to the dynamic modulus of wool throughout the yield region and suggests a value of 1.3 GPa for the dynamic modulus of the α helices. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 5 of 63 found articles
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