Mechanical Characterization and Strain Analysis Applied to the Heat Treatment of Wood Materials, by Means of Digital Image Correlation

Digital image correlation (DIC) was used to examine the strain distribution of heat-treated beech and Uludag fir woods in mechanical testing. It also evaluated the effects of the heat treatment process on the properties of the wood samples. The physical (mass/density loss, dimensional stability, col...

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Main Authors: Deniz Aydemir, Oğuz Aksu, Timucin Bardak, Barbaros Yaman, Eser Sözen, Ömer Ümit Yalçın, Gökhan Gündüz, Nurhan Koçan
Format: Article
Language:English
Published: North Carolina State University 2024-03-01
Series:BioResources
Subjects:
Online Access:https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/23228
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author Deniz Aydemir
Oğuz Aksu
Timucin Bardak
Barbaros Yaman
Eser Sözen
Ömer Ümit Yalçın
Gökhan Gündüz
Nurhan Koçan
author_facet Deniz Aydemir
Oğuz Aksu
Timucin Bardak
Barbaros Yaman
Eser Sözen
Ömer Ümit Yalçın
Gökhan Gündüz
Nurhan Koçan
author_sort Deniz Aydemir
collection DOAJ
description Digital image correlation (DIC) was used to examine the strain distribution of heat-treated beech and Uludag fir woods in mechanical testing. It also evaluated the effects of the heat treatment process on the properties of the wood samples. The physical (mass/density loss, dimensional stability, color change, and surface roughness), mechanical (flexure test and compressive strength), morphological, thermal, and structural properties of the heat-treated wood were examined. It was determined that the heat treatment parameters can be optimized using the DIC method. The test results showed that although heat treatment can provide improved physical and thermal properties, it caused micro-crack formations and collapses in the wood cells. As a consequence, the mechanical properties of the heat-treated wood materials decreased with the heat treatment process. There were slight differences in the curves of the samples according to Fourier infrared and X-ray diffraction analyses. Morphological characterization showed that the heat treatment triggered large cracks in the cell wall and lumens and the morphological structure of heat-treated wood was affected at large percentages.
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spelling doaj.art-fe13f8994d6542c686b30474984f66a72024-04-03T18:58:07ZengNorth Carolina State UniversityBioResources1930-21262024-03-01192301030301361Mechanical Characterization and Strain Analysis Applied to the Heat Treatment of Wood Materials, by Means of Digital Image CorrelationDeniz Aydemir0Oğuz Aksu1Timucin Bardak2Barbaros Yaman3Eser Sözen4Ömer Ümit Yalçın5Gökhan Gündüz6Nurhan Koçan7Forest Industrial Engineering, Faculty of Forestry, Bartin University, 74100, Bartin, TurkeyForest Industrial Engineering, Faculty of Forestry, Bartin University, 74100, Bartin, TurkeyFurniture and Design, Vocational School, Bartin University, 74100, Bartin, TurkeyForest Engineering, Faculty of Forestry, Bartin University, 74100, Bartin, TurkeyForest Industrial Engineering, Faculty of Forestry, Bartin University, 74100, Bartin, Turkey; Forest Products Research & Application Center, Bartin University, 74100, Bartin, TurkeyForest Industrial Engineering, Faculty of Forestry, Isparta University of Applied Sciences, 32100, Isparta, TurkeyIskenderun Technical University, Faculty of Engineering and Natural Sciences, Department of Industrial Engineering, 31200 Iskenderun, Hatay, TürkiyeDepartment of Landscape Architecture, Faculty of Engineering, Architecture and Design, Bartin University, Bartin, TurkeyDigital image correlation (DIC) was used to examine the strain distribution of heat-treated beech and Uludag fir woods in mechanical testing. It also evaluated the effects of the heat treatment process on the properties of the wood samples. The physical (mass/density loss, dimensional stability, color change, and surface roughness), mechanical (flexure test and compressive strength), morphological, thermal, and structural properties of the heat-treated wood were examined. It was determined that the heat treatment parameters can be optimized using the DIC method. The test results showed that although heat treatment can provide improved physical and thermal properties, it caused micro-crack formations and collapses in the wood cells. As a consequence, the mechanical properties of the heat-treated wood materials decreased with the heat treatment process. There were slight differences in the curves of the samples according to Fourier infrared and X-ray diffraction analyses. Morphological characterization showed that the heat treatment triggered large cracks in the cell wall and lumens and the morphological structure of heat-treated wood was affected at large percentages.https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/23228bio-based construction materialsdecorative applicationswood materialsthermal modificationmaterial characterization
spellingShingle Deniz Aydemir
Oğuz Aksu
Timucin Bardak
Barbaros Yaman
Eser Sözen
Ömer Ümit Yalçın
Gökhan Gündüz
Nurhan Koçan
Mechanical Characterization and Strain Analysis Applied to the Heat Treatment of Wood Materials, by Means of Digital Image Correlation
BioResources
bio-based construction materials
decorative applications
wood materials
thermal modification
material characterization
title Mechanical Characterization and Strain Analysis Applied to the Heat Treatment of Wood Materials, by Means of Digital Image Correlation
title_full Mechanical Characterization and Strain Analysis Applied to the Heat Treatment of Wood Materials, by Means of Digital Image Correlation
title_fullStr Mechanical Characterization and Strain Analysis Applied to the Heat Treatment of Wood Materials, by Means of Digital Image Correlation
title_full_unstemmed Mechanical Characterization and Strain Analysis Applied to the Heat Treatment of Wood Materials, by Means of Digital Image Correlation
title_short Mechanical Characterization and Strain Analysis Applied to the Heat Treatment of Wood Materials, by Means of Digital Image Correlation
title_sort mechanical characterization and strain analysis applied to the heat treatment of wood materials by means of digital image correlation
topic bio-based construction materials
decorative applications
wood materials
thermal modification
material characterization
url https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/23228
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