Material model of pulp fibres

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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 languageEnglish
Number of pages2
JournalProceedings in Applied Mathematics and Mechanics
DOIs
Publication statusE-pub ahead of print - 2019

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Pulp
Fibers
Constitutive equations
Plastics
Industry

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Material model of pulp fibres. / Seidlhofer, Tristan; Hirn, Ulrich; Ulz, Manfred Hannes.

In: Proceedings in Applied Mathematics and Mechanics , 2019.

Research output: Contribution to journalArticleResearchpeer-review

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