2025-07-25 ジョージア工科大学
＜関連情報＞
- https://research.gatech.edu/stitched-strength-physics-stiff-knitted-fabrics
- https://journals.aps.org/pre/abstract/10.1103/g94g-c6tt
詰まったニット生地ができるメカニズムを解明する Pulling apart the mechanisms that lead to jammed knitted fabrics
Sarah E. Gonzalez, Michael S. Dimitriyev, A. Patrick Cachine, and Elisabetta A. Matsumoto
Physical Review E Published: 24 July, 2025
DOI: https://doi.org/10.1103/g94g-c6tt
Abstract
We investigate the mechanical behavior of jammed knitted fabrics, where geometric confinement leads to an initially stiff mechanical response that softens into low stiffness behavior with additional applied stress. We show that the jammed regime is distinguished by changes in yarn geometry and contact rearrangement that must occur to allow the individual stitches to stretch. These rearrangements allow for the relaxation of high residual stresses that are present within jammed fabric, altering the low-strain response. We demonstrate that fabric jamming can be induced or reduced by changing either the constituent yarn or the fabric manufacturing parameters. Analysis of experimental samples shows that changing the “stitch size” in manufacturing affects both the in situ yarn radius and the length of yarn per stitch, both of which affect jamming.
