TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

A compact constitutive model to describe the viscoelastic-plastic behaviour of glassy polymers: Comparison with monotonic and cyclic experiments and state-of-the-art models

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Yksityiskohdat

AlkuperäiskieliEnglanti
Sivumäärä18
JulkaisuInternational Journal of Plasticity
DOI - pysyväislinkit
TilaE-pub ahead of print - kesäkuuta 2019
OKM-julkaisutyyppiA1 Alkuperäisartikkeli

Tiivistelmä

A number of constitutive models have been developed for solid polymers to describe the large deformation behavior. However, most of the existing models rely on a purely elastic or hyperelastic initial response when they are incapable of accurately predicting the cyclic stress-strain hysteresis loops. In this work, therefore, a compact cyclic viscoelastic-viscoplastic constitutive model is proposed to improve the prediction of the loops below the peak yield stress.

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