liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • 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
Finite element modelling versus reality for birch chairs
Linköping University, Department of Mechanical Engineering, Energy Systems. Linköping University, The Institute of Technology.
1996 (English)In: European Journal of Wood and Wood Products, ISSN 0018-3768, E-ISSN 1436-736X, Vol. 54, no 5, 355-359 p.Article in journal (Refereed) Published
Abstract [en]

When chairs and other furniture are designed the work is mostly founded on handicraft experience. Calculations based on solid mechanics theory are almost never used in order to find out optimal solutions for different wood members, or the structure as a whole. We have therefore studied a simple chair, made of birch, where the emphasis is laid on its ability to carry different loads. Using the method of finite elements we have predicted the strain and stress at different points on the chair structure. Further, we have manufactured the chair and exposed it to the same load pattern as used in the finite element calculations. The strain has been monitored and compared to the calculated value at the points of most interest. The result shows that part of the calculations corresponded fairly well with the monitored values but also that much work still remains in order to totally predict the accurate structural behaviour for such a simple frame as a chair. Probably, some of the discrepancies depend on the wood material which exhibits so different response for stress in different directions.

 

Abstract [de]

Stühle und andere Möbel werden meist aufgrund von Erfahrungswerten konstruiert. Berechnungen aufgrund einer mechanischen Theorie werden nur selten benutzt, um optimale Lösungen für die Konstruktion zu finden. Wir haben daher einen einfachen Stuhl aus Birkenholz untersucht, der für unterschiedliche Lasten konstruiert war. Zunächst haben wir mit Hilfe der FE-Methode die Kraft- und Spannungsverteilung an verschiedenen Strukturelementen vorausberechnet; dann haben wir einen entsprechenden Stuhl hergestellt, mit den gleichen Lasten wie in der Berechnung belastet und die Spannungswerte gemessen. Ein Teil der gemessenen Werte stimmte einigermaßen mit den simulierten überein. Doch es zeigte sich, daß noch einige Forschungsarbeit nötig ist, um das Verhalten einer so einfachen Strutur wie eines Stuhles genau zu verstehen. Einige Widersprüche sind wohl auch durch die Holzstruktur bedingt, die in unterschiedlicher Weise auf Belastung in verschiedenen Richtungen reagiert.

Place, publisher, year, edition, pages
1996. Vol. 54, no 5, 355-359 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-75087DOI: 10.1007/s001070050200OAI: oai:DiVA.org:liu-75087DiVA: diva2:503643
Available from: 2012-02-16 Created: 2012-02-16 Last updated: 2017-12-07

Open Access in DiVA

No full text

Other links

Publisher's full text

Authority records BETA

Gustafsson, Stig-Inge

Search in DiVA

By author/editor
Gustafsson, Stig-Inge
By organisation
Energy SystemsThe Institute of Technology
In the same journal
European Journal of Wood and Wood Products
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 63 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • 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