000014352 001__ 14352
000014352 005__ 20161115100149.0
000014352 04107 $$aeng
000014352 046__ $$k2016-08-21
000014352 100__ $$aZou, Shibo
000014352 24500 $$aUnfolding process of coiling fibers made by instability-assisted fused deposition modeling

000014352 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014352 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014352 506__ $$arestricted
000014352 520__ $$2eng$$aMicrostructured fibers with sacrificial bonds fabricated by instability-assisted fused deposition modeling (IFDM) exhibit high toughness and stretchability. However, early breakage of backbone hinders the fiber from achieving higher toughness. Finite element analysis using ANSYS was performed to analyse the unfolding process of a single coiling loop under uniaxial force. Results show that maximum von Mises stress is found at the inner side of the previous top loop, which corresponds with the location of fiber breakage from experiments. Bending continues to be the dominant factor for maximum stress during the unfolding process. Torsion contributes more to maximum stress with decreasing fiber slenderness. The stress analysis of the unfolding process would help to optimize the fiber production by reducing maximum von Mises stress to avoid early breakage of backbone. We hope that microstructured fibers made with IFDM could one day be used for safety-critical applications, such as safety harness or bulletproof vests.

000014352 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014352 653__ $$a

000014352 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014352 720__ $$aZou, Shibo
000014352 8560_ $$ffischerc@itam.cas.cz
000014352 8564_ $$s207777$$uhttps://invenio.itam.cas.cz/record/14352/files/PO.SM14-1.20.324.pdf$$yOriginal version of the author's contribution as presented on CD,  page 2848, code PO.SM14-1.20.324
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000014352 962__ $$r13812
000014352 980__ $$aPAPER