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Experimental assessment of the annual growth ring’s impact on the mechanical behavior of temperate and tropical species
Universite Clermont Auvergne, France. USTM, Ecole Polytechnique de Masuku, Gabon..
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0002-0900-5110
Universite Clermont Auvergne, France. CENAREST, Gabon..
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0002-0145-080x
2020 (English)In: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 15, no 2, p. 4282-4293Article in journal (Refereed) Published
Abstract [en]

An innovative experimental protocol is presented, linking a nondestructive (on computed tomography scanner) and destructive approach (bending test on electrostatic press). This study aimed to evaluate the annual growth ring’s impact on the mechanical behavior of wood. The tests were carried out on temperate specimens (Pseudotsuga menziesii and Abies alba Mill) from the Massif Central Region of France and tropical specimens (Aucoumea klaineana Pierre, Milicia excelsa, and Pterocarpus soyauxii) from Gabon. The connection between the mechanical parameters, taken from these tests and their structural characteristics, are also highlighted. Based on these results, a database was formed of the annual growth ring’s impact on the mechanical characteristics of these species. A link was found between the annual growth ring and the mechanical and physical characteristics of the species. The number and width of the earlywood ring and its mechanical properties were also investigated for each type of species. This comparison and the link highlighted was possible due to the study of the impact of dry density’s specimens, considered in this work as an adjustment parameter on the study of the mechanical behavior of these species.

Place, publisher, year, edition, pages
NC State University , 2020. Vol. 15, no 2, p. 4282-4293
Keywords [en]
tropical species, temperate species, congo basin forest, massif ventral forest, bending test
National Category
Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-78590OAI: oai:DiVA.org:ltu-78590DiVA, id: diva2:1425407
Note

Validerad;2020;Nivå 2;2020-04-27 (johcin

Available from: 2020-04-21 Created: 2020-04-21 Last updated: 2020-04-27Bibliographically approved

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Turesson, JonasEkevad, Mats

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