NDLI: Experimental study of the transverse mechanical properties of polyamide 6.6 monofilaments

Content Provider	Springer Nature Link
Author	Stamoulis, Georgios Wagner Kocher, Christiane Renner, Marc
Copyright Year	2007
Abstract	In this paper, we analyse experimental results concerning the transverse mechanical properties of PA6.6 monofilaments. Three diameters of such monofilaments (120, 230 and 400 μm) were compressed at seven different speeds, varying from 1 to 5,000 μm/min, until a maximum force of 2,000 N. The results show a high degree of anisotropy: the transverse Young’s modulus is less than one-tenth the value of the longitudinal one. In general, as the speed increases, more energy is needed to compress the monofilament and the curves representing the evolution of the contact width as a function of the force per unit length are in descending order. This happens in the plastic region, as long as the phenomenon is well stabilised, and indicates a viscoelastoplastic behaviour of PA6.6 monofilaments in the transverse direction. Transverse relaxation tests confirmed this behaviour. However, the curves representing the evolution of the diameter as a function of the force per unit length are not always in descending order as the speed increases. These curves also show a change in the optical properties of the compressed monofilament. Scanning Electron Microscope photos of transversely compressed PA6.6 monofilaments revealed that the monofilament seems to fibrillate inside its core.
Starting Page	4441
Ending Page	4450
Page Count	10
File Format	PDF
ISSN	00222461
Journal	Journal of Materials Science
Volume Number	42
Issue Number	12
e-ISSN	15734803
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2007-02-28
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mechanics Crystallography Continuum Mechanics and Mechanics of Materials Polymer Sciences Characterization and Evaluation of Materials Materials Science
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Mechanics of Materials Mechanical Engineering Polymers and Plastics

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