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Near infrared spectroscopy as a tool for estimation of mechanical stresses in wood
IVALSA/CNR, via Biasi 75, 38010 San Michele All’Adige (TN), Italy.
IVALSA/CNR, via Biasi 75, 38010 San Michele All’Adige (TN), Italy.
IVALSA/CNR, via Biasi 75, 38010 San Michele All’Adige (TN), Italy.
Luleå University of Technology, Department of Engineering Sciences and Mathematics.
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2013 (English)In: Advanced Materials Research, ISSN 1022-6680, E-ISSN 1662-8985, Vol. 778, 448-453 p.Article in journal (Refereed) Published
Abstract [en]

Significant scientific work has been dedicated for exploration of the infrared applications within wood science and technology, not much has been done linking it to the mechanical testing. It is expected that due to mechanical stresses (and related deformations) the interaction between constitutive elements of wood changes, proportionally to the stresses applied. The response of the material to mechanical stresses (such as tensile loading) on the molecular level should be therefore detectable by means of infrared spectroscopy. Dedicated tests have been devoted for proving this hypothesis. Self developed testing machine has been integrated with infrared spectrometer in order to conduct a series fully controlled mechanical tests. It was possible to predict stress level of wood during tension by applying proper chemometric analysis (partial least square (PLS) models). Implementation of infrared spectroscopy in to timber engineering and mechanical testing of wood provides very essential supplement to the typical information collected during standard tests. More additional tests and reference data is necessary in order to create more reliable and universal model suitable for routine assessments. Nevertheless, it was demonstrated that prediction of the stress on the basis of the infrared spectra is possible.

Place, publisher, year, edition, pages
2013. Vol. 778, 448-453 p.
National Category
Other Mechanical Engineering
Research subject
Wood Products Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-35331DOI: 10.4028/www.scientific.net/AMR.778.448Local ID: 9d2d8617-07a4-4fc6-af01-e408d8d31e6aOAI: oai:DiVA.org:ltu-35331DiVA: diva2:1008584
Conference
International Conference on Structural Health Assessment of Timber Structures : 04/09/2013 - 06/01/2014
Note

Validerad; 2013; 20130912 (ollhag)

; Konferensartikel i tidskrift

Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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