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Use of viscoplastic models for prediction of deformation of polymer parts
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.).
2010 (English)In: Society for Experimental Mechanics - SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2010: Volume 3, 2010, 827-836 p.Conference paper, Published paper (Refereed)
Abstract [en]

Polymers are extensively used in engineering applications, ranging from sealing rings to dampers and springs in centrifugal separators as well as in micro robots with piezoelectric excitation. The mechanical behaviour of these materials is highly non-linear and may be described by integral equations, taking into account the load history of the part considered. Paper shows taht long-term deformation in creep and relaxation can be derived from tensile tests at several loading rates. The influence of cyclic loading is discussed. Tests show that material can fail in fatigue.

Place, publisher, year, edition, pages
2010. 827-836 p.
Series
Conference Proceedings of the Society for Experimental Mechanics Series, ISSN 2191-5644
Keyword [en]
Centrifugal separator, Creep and relaxation, Cyclic loadings, Engineering applications, Load history, Loading rate, Long-term deformation, Mechanical behaviour, Micro robots, Non-linear, Piezoelectric excitation, Sealing ring, Tensile tests, Viscoplastic models, Centrifugation, Centrifuges, Deformation, Polymers, Tensile testing, Fatigue of materials
National Category
Other Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-149712Scopus ID: 2-s2.0-78049450665ISBN: 9781617386909 (print)OAI: oai:DiVA.org:kth-149712DiVA: diva2:741189
Conference
SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2010, 7-10 June 2010, Indianapolis, IN, United States
Note

QC 20140912

Available from: 2014-08-27 Created: 2014-08-26 Last updated: 2017-03-29Bibliographically approved

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  • apa
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  • de-DE
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  • nn-NB
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  • Other locale
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Output format
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