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European Journal of Wood and Wood Products
Published in: European Journal of Wood and Wood Products 5/2013

01-09-2013 | Originals Originalarbeiten

Embedment tests parallel-to-grain and ductility aspects using various wood species

Authors: C. Sandhaas, G. J. P. Ravenshorst, H. J. Blass, J. W. G. van de Kuilen

Published in: European Journal of Wood and Wood Products | Issue 5/2013

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Abstract

Embedment tests parallel-to-grain using dowels with different steel grades and five wood species were carried out. The specimen sampling with regard to density was random and the specimens were tested at different moisture contents. Furthermore, own tests were extended by results from literature. Observed ductility aspects using different wood species are discussed. Comparisons with the existing design equation in Eurocode 5 were made. It was found that the equation penalises species with higher densities. An adjustment of density and embedment strength to 12 % moisture content reduced the scatter considerably. Moreover, based on the test results, the sophisticated distinction of softwood in many strength classes based on minor differences in density is considered to be overly precise as far as embedment strength is concerned. An influence of the dowel steel grade was measured although the dowels remained elastic as required by standard embedment test protocols.
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Literature
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EN-12512 (2001) Timber structures-test methods-cyclic testing of joints made with mechanical fasteners. European Committee for Standardisation, Brussels, Belgium
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EN-338 (2009) Structural timber-strength classes. European Committee for Standardisation, Brussels, Belgium
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Metadata
Title
Embedment tests parallel-to-grain and ductility aspects using various wood species
Authors
C. Sandhaas
G. J. P. Ravenshorst
H. J. Blass
J. W. G. van de Kuilen
Publication date
01-09-2013
Publisher
Springer Berlin Heidelberg
Published in
European Journal of Wood and Wood Products / Issue 5/2013
Print ISSN: 0018-3768
Electronic ISSN: 1436-736X
DOI
https://doi.org/10.1007/s00107-013-0718-z

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