Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Parametric Study of Hydroforming of Paper Materials Using the Explicit Finite Element Method with a Moisture-dependent and Temperature-dependent Constitutive Model
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.). KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center BiMaC Innovation. KTH, School of Chemical Science and Engineering (CHE), Centres, Biofibre Materials Centre, BiMaC. (BiMaC Innovation)ORCID iD: 0000-0001-7657-3794
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.). (BiMaC Innovation)ORCID iD: 0000-0001-8699-7910
2016 (English)In: Packaging technology & science, ISSN 0894-3214, E-ISSN 1099-1522, Vol. 29, no 3, 145-160 p.Article in journal (Refereed) Published
Abstract [en]

A moisture-dependent and temperature-dependent constitutive model for paper materials was proposed and implemented into a finite element model of the paper hydroforming process. Experimental hydroforming was conducted at temperatures of 23°C and 110 °C and moisture contents of 6.9 and 10.6 (respectively corresponding to 50 and 80% relative humidity). The proposed model, which also included the effects of drying, captured the extent of forming of all experimental results within reasonable accuracy. For the moisture content and temperature conditions in this study, the phenomenon of drying was found to be the reason why the application of temperature had a much greater effect on the degree of forming than hydroforming at various moisture contents. A simulation-based parametric study was conducted in order to identify the importance of various process and material parameters. This parametric study confirmed many previous empirical findings and was capable of quantifying the extent to which these process and material parameters affect the three-dimensional formability of paper. The coefficient of friction was identified as one of the most important factors when determining the extent of forming.

Place, publisher, year, edition, pages
Wiley-Blackwell, 2016. Vol. 29, no 3, 145-160 p.
Keyword [en]
hydroforming, paper, finite element method, moisture, temperature
National Category
Paper, Pulp and Fiber Technology
Research subject
Solid Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-180658DOI: 10.1002/pts.2193ISI: 000370202200002Scopus ID: 2-s2.0-84955598556OAI: oai:DiVA.org:kth-180658DiVA: diva2:895602
Projects
BiMaC Innovation
Note

QC 20160308. QC 20160319

Available from: 2016-01-19 Created: 2016-01-19 Last updated: 2017-01-03Bibliographically approved
In thesis
1. 3-D Forming of Paper Materials
Open this publication in new window or tab >>3-D Forming of Paper Materials
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Paper materials have a long history of use as a packaging material, although traditional paper-based packaging is limited in its shape, complexity, and design. In order to better understand the deformation and failure mechanisms during 3-D forming, two experimental studies of paper materials have been conducted. Furthermore, constitutive modeling combined with explicit finite element modeling have been validated against numerous experimental setups and utilized to develop further understanding of 3-D forming processes.

Two experimental studies were necessary to further investigate and model the 3-D formability of paper materials. The combined effect of moisture and temperature on the uniaxial mechanical properties of paper was investigated, providing new insights into how moisture and temperature affect both the elastic and plastic properties of paper materials. Furthermore, the in-plane, biaxial yield and failure surfaces were experimentally investigated in both stress and strain space, which gave an operating window for 3-D forming processes as well as input parameters for the constitutive models.

The constitutive modeling of paper materials and explicit finite element modeling were directed towards two 3-D forming processes: deep drawing and hydroforming. The constitutive models were calibrated and validated against simple (typically uniaxial) mechanical tests, and the explicit finite element models (which utilize the developed constitutive models) were validated against 3-D forming experiments. Hand-made papers with fibers partially oxidized to dialcohol cellulose, which has greater extensibility than typical paper materials, was furthermore characterized, modeled, and 3-D formed as a demonstration of the potential of modified paper fiber products for 3-D forming applications.

Abstract [sv]

Papper har länge framgångsrikt använts som förpackningsmaterial, men traditionella pappers- och kartongförpackningar är begränsade i form och design. Två experimentella studier har utförts för att få bättre förståelse för deformations- och brottmekanismer under 3D formning. Resultat från konstitutivmodellering i kombination med explicit finit element modellering har validerats mot ett flertal experimentella uppställningar och använts för att utveckla bättre förståelse för 3D formningsprocesser.

Två experimentella studier var nödvändiga för att ytterligare undersöka och modellera pappersmaterials 3D formbarhet. I den första undersöktes den kombinerade effekten av fukt och temperatur på pappers enaxliga mekaniska egenskaper, vilket gav nya insikter om hur fukt och temperatur påverkar både de elastiska och de plastiska egenskaperna hos papper. I den andra har biaxiella (i planet) flyt- och brottytor undersökts experimentellt i både spännings- samt töjningsrymden, vilket gav ett processfönster för 3D formningsmetoder samt ingångsparametrar för de konstitutiva ekvationerna.

Konstitutiv modellering av pappersmateriel samt explicit finit element modellering riktades mot två 3D formningsprocesser: djupdragning och hydroformning. De konstitutiva modellerna kalibrerades och validerades mot enkla (oftast enaxliga) mekaniska experiment, och explicita finita elementmodeller (som utnyttjar de utvecklade konstitutiva modellerna) validerades mot 3D formningsexperiment. Handark med fibrer delvis oxiderade-reducerade till dialkohol cellulosa, som har större töjbarhet än andra pappersmateriel, har dessutom karakteriserats, modellerats, samt 3D formats som en demonstation av potentialen hos modifierade pappersfiberprodukter i 3D formning.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2017. 33 p.
Series
TRITA-HFL. Report / Royal Institute of Technology, Solid Mechanics, ISSN 1654-1472 ; 0608
Keyword
3-D forming, finite element method, constitutive model, moisture, temperature, biaxial, hydroforming, deep drawing, 3D formning, finita elementmetoden, konstitutiv modell, fukt, temperatur, biaxiell, hydroformning, djupdragning
National Category
Paper, Pulp and Fiber Technology Applied Mechanics
Research subject
Solid Mechanics
Identifiers
urn:nbn:se:kth:diva-199294 (URN)978-91-7729-250-0 (ISBN)
Public defence
2017-02-10, Sal F3, Lindstedtsvägen 26, Stockholm, 14:00 (English)
Opponent
Supervisors
Note

QC 20170104

Available from: 2017-01-04 Created: 2017-01-03 Last updated: 2017-01-04Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopushttp://onlinelibrary.wiley.com/doi/10.1002/pts.2193/full

Search in DiVA

By author/editor
Linvill, EricÖstlund, Sören
By organisation
Solid Mechanics (Dept.)VinnExcellence Center BiMaC InnovationBiofibre Materials Centre, BiMaC
In the same journal
Packaging technology & science
Paper, Pulp and Fiber Technology

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 170 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf