Sökning: onr:"swepub:oai:DiVA.org:du-39399" >
Characterization an...
Characterization and impact of fiber size variability on the mechanical properties of fiber networks with an application to paper materials
-
- Brandberg, August, 1990- (författare)
- KTH,Hållfasthetslära,CD Laboratory for Fiber Swelling and Paper Performance, Graz University of Technology, Inffeldgasse 23, Graz, 8010, Austria
-
- Reyier Österling, Sofia (författare)
- Högskolan Dalarna,Verksamhetsstödet,Dalarna Univ, Hogskolegatan 2, SE-79188 Falun, Sweden.
-
- Kulachenko, Artem, 1978- (författare)
- KTH,Hållfasthetslära,CD Laboratory for Fiber Swelling and Paper Performance, Graz University of Technology, Inffeldgasse 23, Graz, 8010, Austria
-
visa fler...
-
- Hirn, U. (författare)
- Graz Univ Technol, CD Lab Fiber Swelling & Paper Performance, Inffeldgasse 23, A-8010 Graz, Austria.;Graz Univ Technol, Inst Paper Pulp & Fibre Technol, Inffeldgasse 23, A-8010 Graz, Austria.
-
visa färre...
-
(creator_code:org_t)
- Elsevier BV, 2022
- 2022
- Engelska.
-
Ingår i: International Journal of Solids and Structures. - : Elsevier BV. - 0020-7683 .- 1879-2146. ; 239-240
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://du.diva-port... (primary) (Raw object)
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- Cellulose fibers come in a wide range of shapes and sizes. The heterogeneity of the fiber length, width, wall thickness, curl and external fibrillation is detrimental to the mechanical performance of products such as paper and paperboard. Although micro-mechanical models of these materials sometimes incorporate features of this heterogeneity, so far there is no standardized method of fully incorporating this. We examine a large number of industrial mechanical fiber pulps to determine what information such a standardized method would have to have. We find that the method must allow for both non-Gaussian distributions and dependence between the variables. We present a method of characterizing mechanical pulp under these conditions that views the individual fiber as outcome of a sampling process from a multivariate distribution function. The method is generally applicable to any dataset, even a non-Gaussian one with dependencies. Using a micro-mechanical model of a paper sheet the proposed method is compared with previously presented methods to study whether incorporating both a varying fiber size and dependencies is necessary to match the response of a sheet modeled with measured characterization data. The results demonstrate that micro-mechanical models of paper and paperboard should not neglect the influence of the dependence between the characteristic shape features of the fibers if the model is meant to match physical experiments. © 2022 The Authors
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
Nyckelord
- Cellulose
- Fibers
- Micro-mechanics
- Degrees of freedom (mechanics)
- Distribution functions
- Gaussian noise (electronic)
- Pulp
- Textile fibers
- Cellulose fiber
- Fiber networks
- Fiber sizes
- Micromechanical modelling
- Paper and paperboard
- Paper materials
- Properties of fiber
- Shape and size
- Standardized methods
- Matches
- Materials
- Paper
- Sheets
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas