Simulated structure of wet fiber networks

Pasi P J Miettinen, Jukka A. Ketoja, Tuomo Hjelt

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Tensile strength is used widely to characterize mechanical properties of paper. Recent numerical studies have revealed that wet tensile strength depends strongly on the number of inter-fiber contacts. In this work, analytical models and computer simulations were utilized to examine the number of these contacts for pressed and stretched fiber networks. When the majority of fibers lie along the xy-plane, the analytical and numerical predictions for the number of contacts are in good agreement both for pressed and stretched networks. However, computer simulations are more relevant for flocculated and stretched sheets, where the simplifications of analytical models are not valid any longer.
Original languageEnglish
Pages (from-to)516-522
Number of pages7
JournalNordic Pulp and Paper Research Journal
Volume22
Issue number4
DOIs
Publication statusPublished - 1 Dec 2007
MoE publication typeA1 Journal article-refereed

Fingerprint

tensile strength
computer simulation
Fibers
Analytical models
Tensile strength
mechanical properties
Computer simulation
prediction
mechanical property
Mechanical properties
fibre

Keywords

  • Fiber networks
  • Orientation
  • Paper structure
  • Simulation
  • Wet webs

Cite this

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Simulated structure of wet fiber networks. / Miettinen, Pasi P J; Ketoja, Jukka A.; Hjelt, Tuomo.

In: Nordic Pulp and Paper Research Journal, Vol. 22, No. 4, 01.12.2007, p. 516-522.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Miettinen, Pasi P J

AU - Ketoja, Jukka A.

AU - Hjelt, Tuomo

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AB - Tensile strength is used widely to characterize mechanical properties of paper. Recent numerical studies have revealed that wet tensile strength depends strongly on the number of inter-fiber contacts. In this work, analytical models and computer simulations were utilized to examine the number of these contacts for pressed and stretched fiber networks. When the majority of fibers lie along the xy-plane, the analytical and numerical predictions for the number of contacts are in good agreement both for pressed and stretched networks. However, computer simulations are more relevant for flocculated and stretched sheets, where the simplifications of analytical models are not valid any longer.

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KW - Orientation

KW - Paper structure

KW - Simulation

KW - Wet webs

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