On Viscoplasticity Characterization of Natural Fibres with High Variability

Advanced Composites Letters 2015
Līva Pupure, Jānis Vārna, Roberts Joffe

Zapas model has shown good results in characterizing viscoplasticity in polymers and composites. Typically all viscoplastic parameters for this model are obtained in creep and strain recovery tests at different stress levels and at different test length. Obtaining parameters for highly variable bio-based materials is more challenging: trends are hidden in the scatter and data fitting is complicated. This paper suggests "single specimen methodology" for complete viscoplastic characterization and identification.

Keywords
Material Model; Flax Fibers; Composites; Behavior; Stem
DOI
10.1177/096369351502400601
Hyperlink
https://journals.sagepub.com/doi/10.1177/096369351502400601

Pupure, L., Vārna, J., Joffe, R. On Viscoplasticity Characterization of Natural Fibres with High Variability. Advanced Composites Letters, 2015, Vol. 24, No. 6, pp.125-129. ISSN 0963-6935. Available from: doi:10.1177/096369351502400601

Publication language
English (en)