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European Journal of Wood and Wood Products

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16-07-2020 | Original

Mechanical performance of glulam products made with Portuguese poplar

Authors: Sandra R. S. Monteiro, Carlos Martins, Alfredo M. P. G. Dias, Helena Cruz

Published in: European Journal of Wood and Wood Products | Issue 5/2020

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Abstract

Due to its average mechanical properties, poplar, a fast-growing species, has been disfavored compared to stronger species for several decades. Wood-based products may help changing that perspective and thus, poplar has been gaining its market share for structural uses. A state-of-the-art review concerning the use of poplar to produce glued laminated products, with special focus on the use of Portuguese poplar, is presented. The Portuguese forest produces a great variety of species. The most common poplar species found in this country are Populus x canadensis, P. nigra L., and P. alba L. Despite its limited availability, and the market hesitation on its structural application, recent studies on poplar grown in the Portuguese forest showed its suitability for structural purposes. Glued laminated timber (GLT) beams made with this species revealed a very promising mechanical behavior. Bending strength tests evidenced a ductile behavior on more than 70% of the beams, which motivated deepening the study on the raw material used to produce those beams. To predict the mechanical behavior of such beams, a 3D numerical model was developed. The numerically predicted results were compared with the experimental ones, showing very good agreement between both approaches.

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Title: Mechanical performance of glulam products made with Portuguese poplar
Authors: Sandra R. S. Monteiro
Carlos Martins
Alfredo M. P. G. Dias
Helena Cruz
Publication date: 16-07-2020
Publisher: Springer Berlin Heidelberg
Published in: European Journal of Wood and Wood Products / Issue 5/2020
Print ISSN: 0018-3768
Electronic ISSN: 1436-736X
DOI: https://doi.org/10.1007/s00107-020-01569-y

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