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Issue
2009
Article Number 07017
Number of page(s) 6
Section Applied Research and Applications: Applications
DOI 10.1051/esomat/200907017
Published online 01 September 2009

ESOMAT 2009, 07017 (2009)
DOI: 10.1051/esomat/200907017

Fastening of shape memory hook arrays

D. Vokoun1, D. Majtás1, M. Frost1, 2, P. Sedlák2 and P. Šittner1

1  Institute of Physics ASCR, v.v.i., Na Slovance 2, 182 00 Prague 8, Czech Republic
2  Institute of Thermomechanics ASCR, v.v.i., Dolejškova 1402/5, 182 00 Prague 8, Czech Republic

vokoun@fzu.cz

Published online: 1 September 2009

Abstract
Shape memory (SM) fasteners based on the SM effect are already well-known applications. However, it has just been recently that NiTi hook arrays working as probabilistic fasteners were fabricated. Similarly to Velcrotype fasteners our fasteners are releasable with hooks returning back to their original shape after releasing. NiTi hooks may be incorporated into textiles and function in the same manner as Velcro fasteners do or they may be incorporated into a rigid substrate. The main objective of our research is twofold: First, we would like to show the influence of the material properties and geometry parameters of pseudoelastic NiTi micro-hooks on the interlocking force necessary for releasing the NiTi hook connection. Secondly, we show a method for aligning of the micro-hooks into an array and attaching them to a substrate.



© Owned by the authors, published by EDP Sciences 2009


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