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

Direct link
Stability problems in optimized chairs?
Linköping University, Department of Mechanical Engineering, Energy Systems. Linköping University, The Institute of Technology.
1996 (English)In: Wood Science and Technology, ISSN 0043-7719, E-ISSN 1432-5225, Vol. 30, no 5, 339-345 p.Article in journal (Refereed) Published
Abstract [en]

Chairs and other furniture are seldom designed by help of structural mechanics and modern computers. Even if the designer uses a sophisticated CAD program, he, or she, will not use for example, finite element programs, FEM, in order to optimise the construction. Most furniture is made of wood or wood composites. Usually, structural mechanics is used for designing wood members in roof constructions and so forth. Because of the consequences of a breakdown, the allowable design stresses must be very low, about one third of the measured breaking strength. Smaller wood details could be chosen with more care and for chairs the result of a break would not necessarily lead to a disaster. However, a lot of the knowledge about how to design small wood structures emanates from the pre-war aeroplane industry. The difference between tensile and compression strength properties in wood also makes ordinary FEM programs hazardous to use because the background theory assumes that these properties are equal in magnitude. In this paper we show how to calculate the internal stresses of an undetermined chair frame and also show some material test results for Swedish alder, Alnus glutinosa.

Place, publisher, year, edition, pages
1996. Vol. 30, no 5, 339-345 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-75086DOI: 10.1007/BF00223553OAI: diva2:503642
Available from: 2012-02-16 Created: 2012-02-16 Last updated: 2012-02-24

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

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

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 48 hits
ReferencesLink to record
Permanent link

Direct link