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Mechanical performance of yew (Taxus baccata L.) from a longbow perspective
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics.
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2013 (English)In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 67, no 7, 763-770 p.Article in journal (Refereed) Published
Abstract [en]

Yew (Taxus baccata L.) longbow was the preferred weapon in the Middle Ages until the emergence of guns. In this study, the tensile, compression, and bending properties of yew were investigated. The advantage of yew over the other species in the study was also confirmed by a simple beam model. The superior toughness of yew has the effect that a yew longbow has a higher range compared with bows made from other species. Unexpectedly, the mechanical performance of a bow made from yew is influenced by the juvenile-to-mature wood ratio rather than by the heartwood-to-sapwood ratio. A yew bow is predicted to have maximized performance at a juvenile wood content of 30-50%, and located at the concave side (the compressive side facing the bowyer). Here, the stiffness and yield stress in compression should be as high as possible.

Place, publisher, year, edition, pages
2013. Vol. 67, no 7, 763-770 p.
Keyword [en]
archery, axial strength, bending tests, longbow, yew (Taxus baccata L.)
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:uu:diva-219999DOI: 10.1515/hf-2012-0151ISI: 000330365900006OAI: oai:DiVA.org:uu-219999DiVA: diva2:703786
Available from: 2014-03-09 Created: 2014-03-09 Last updated: 2017-12-05Bibliographically approved

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Bjurhager, IngelaGamstedt, Kristofer

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