Development of Constitutive Model for Composites Exhibiting Time Dependent Properties

IOP Conference Series: Materials Science and Engineering. Vol.48: 7th EEIGM International Conference on Advanced Materials Research 2013
Līva Pupure, Roberts Joffe, Jānis Vārna, Birgitha Nyström

Regenerated cellulose fibres and their composites exhibit highly nonlinear behaviour. The mechanical response of these materials can be successfully described by the model developed by Schapery for time-dependent materials. However, this model requires input parameters that are experimentally determined via large number of time-consuming tests on the studied composite material. If, for example, the volume fraction of fibres is changed we have a different material and new series of experiments on this new material are required. Therefore the ultimate objective of our studies is to develop model which determines the composite behaviour based on behaviour of constituents of the composite. This paper gives an overview of problems and difficulties, associated with development, implementation and verification of such model.

Atslēgas vārdi
Creep Tests, Prony Series, Viscoelastic
DOI
10.1088/1757-899X/48/1/012007
Hipersaite
https://iopscience.iop.org/article/10.1088/1757-899X/48/1/012007

Pupure, L., Joffe, R., Vārna, J., Nyström, B. Development of Constitutive Model for Composites Exhibiting Time Dependent Properties. No: IOP Conference Series: Materials Science and Engineering. Vol.48: 7th EEIGM International Conference on Advanced Materials Research, Zviedrija, Lulea, 21.-22. marts, 2013. Bristol: IOP Publishing, 2013, 1.-7.lpp. ISSN 1757-8981. Pieejams: doi:10.1088/1757-899X/48/1/012007

Publikācijas valoda
English (en)