Use of viscoplastic models for prediction of deformation of polymer parts
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 (Refereed)
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.
, Conference Proceedings of the Society for Experimental Mechanics Series, ISSN 21915644
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
Other Materials Engineering
IdentifiersURN: urn:nbn:se:kth:diva-149712ScopusID: 2-s2.0-78049450665ISBN: 978-161738690-9OAI: oai:DiVA.org:kth-149712DiVA: diva2:741189
SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2010, 7-10 June 2010, Indianapolis, IN, United States
QC 201409122014-08-272014-08-262014-09-12Bibliographically approved