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Velcro-like fasteners based on NiTi micro-hook arrays

SYSNO ASEP	0365186
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Velcro-like fasteners based on NiTi micro-hook arrays
Author(s)	Vokoun, David (FZU-D)_{RID, ORCID} Sedlák, Petr (UT-L)_{RID, ORCID} Frost, Miroslav (UT-L)_{RID, ORCID} Pilch, Jan (FZU-D)_RID Majtás, Dušan (FZU-D) Šittner, Petr (FZU-D)_{RID, ORCID}
Source Title	Smart Materials and Structures. - : Institute of Physics Publishing - ISSN 0964-1726 Roč. 20, č. 8 (2011), 085027/1-085027/13
Number of pages	13 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	Nitinol ; martensitic transformation ; Finite Element Method ; Velcro-like fastener
Subject RIV	BM - Solid Matter Physics ; Magnetism
R&D Projects	GAP108/10/1296 GA ČR - Czech Science Foundation (CSF)
	GA106/09/1573 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z10100520 - FZU-D (2005-2011)
	AV0Z20760514 - UT-L (2005-2011)
UT WOS	000294765600031
DOI	10.1088/0964-1726/20/8/085027
Annotation	A recently developed Velcro-like fastener utilizes superelastic deformation of two interlocked NiTi hooks when pulled apart. This work focuses on experimental analysis (evaluation of normal detachment force at different temperatures) and modeling (simulation by a finite element implemented SMA model) of the unhooking process. It is claimed that nonlinear superelastic deformation of NiTi leads to unique properties of the NiTi hook fasteners such as high strength (~15 000 kg m−2), a significant increase of strength with increasing temperature, absorption of impact loads, damping of mechanical vibrations, forceless contact or silent release and better functioning in dirty environments compared to conventional Velcro fasteners.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2012

Number of the records: 1