Projects per year
Abstract
Pulp fibres are a part of the paper fibre network and contribute to its non‐linear rate‐dependent behaviour [1]. An appropriate material model helps to quantify and understand these mechanisms, which are highly relevant to industry. The development of the constitutive equations is based on cyclic uniaxial tension tests [2]. For that first a one dimensional viscoelastic, viscoplastic model was designed to fit experimental data. This one dimensional model is then ported to a three dimensional formulation with the logarithmic strain framework [3]. The investigation shows that pulp fibres have a distinct plastic behaviour, which could be the cause of the non‐linear behaviour on the macroscopic level of the network.
Original language | English |
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Pages (from-to) | e201900053 |
Journal | Proceedings in Applied Mathematics and Mechanics |
DOIs | |
Publication status | E-pub ahead of print - 2019 |
Projects
- 1 Finished
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CD-Laboratory for Fiber Swelling and Paper Performance
Hirn, U., Lahti, J. A., Schennach, E., Fischer, W. J., Czibula, C. M., Urstöger, G. J., Ganser, C., Schuller, M., Krainer, S., Xhori, R., Spirk, S. & Niegelhell, K.
1/12/15 → 30/11/23
Project: Research project