Analytical and experimental studies on stress capacity with modified wood members under combined stresses

The stress capacity of joints made of modified wood members under loading can be affected by design of joints and type of adhesive. Hence, these factors were addressed in this study by assessment of stress capacity variations in corner joints under diagonal applied compressive load induced combined...

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Autores principales:	Abdolzadeh,H, Ebrahimi,Gh, Layeghi,M, Ghassemieh,M
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2015
Materias:	Corner joint dowel epoxy adhesive furfurylation stress capacity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000200005
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spelling	oai:scielo:S0718-221X20150002000052015-06-17Analytical and experimental studies on stress capacity with modified wood members under combined stressesAbdolzadeh,HEbrahimi,GhLayeghi,MGhassemieh,M Corner joint dowel epoxy adhesive furfurylation stress capacity The stress capacity of joints made of modified wood members under loading can be affected by design of joints and type of adhesive. Hence, these factors were addressed in this study by assessment of stress capacity variations in corner joints under diagonal applied compressive load induced combined stresses. The joints with mitered and butted design were constructed by application of epoxy and polyvinyl acetate (PVAc) adhesives from furfurylated wood samples with two weight percentage gains (WPGs), i.e., 20% as low level and 60% as high level. Results indicated that stress capacity in both corner joints was not significantly decreased with increasing polymerization of furfuryl alcohol (FA) in wood. Despite the high compression strength in mitered joint, the induced compression stresses were low in comparison with butted joint. The stress capacity in mitered joint bonded with epoxy adhesive enhanced with increasing the level of furfurylation. This was true for shear stress parallel to grain as well. Generally, it could be concluded that mitered joint made of furfurylated members and bonded with epoxy adhesive would be stronger than other corner joints.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.17 n.2 20152015-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000200005en10.4067/S0718-221X2015005000025
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Corner joint dowel epoxy adhesive furfurylation stress capacity
spellingShingle	Corner joint dowel epoxy adhesive furfurylation stress capacity Abdolzadeh,H Ebrahimi,Gh Layeghi,M Ghassemieh,M Analytical and experimental studies on stress capacity with modified wood members under combined stresses
description	The stress capacity of joints made of modified wood members under loading can be affected by design of joints and type of adhesive. Hence, these factors were addressed in this study by assessment of stress capacity variations in corner joints under diagonal applied compressive load induced combined stresses. The joints with mitered and butted design were constructed by application of epoxy and polyvinyl acetate (PVAc) adhesives from furfurylated wood samples with two weight percentage gains (WPGs), i.e., 20% as low level and 60% as high level. Results indicated that stress capacity in both corner joints was not significantly decreased with increasing polymerization of furfuryl alcohol (FA) in wood. Despite the high compression strength in mitered joint, the induced compression stresses were low in comparison with butted joint. The stress capacity in mitered joint bonded with epoxy adhesive enhanced with increasing the level of furfurylation. This was true for shear stress parallel to grain as well. Generally, it could be concluded that mitered joint made of furfurylated members and bonded with epoxy adhesive would be stronger than other corner joints.
author	Abdolzadeh,H Ebrahimi,Gh Layeghi,M Ghassemieh,M
author_facet	Abdolzadeh,H Ebrahimi,Gh Layeghi,M Ghassemieh,M
author_sort	Abdolzadeh,H
title	Analytical and experimental studies on stress capacity with modified wood members under combined stresses
title_short	Analytical and experimental studies on stress capacity with modified wood members under combined stresses
title_full	Analytical and experimental studies on stress capacity with modified wood members under combined stresses
title_fullStr	Analytical and experimental studies on stress capacity with modified wood members under combined stresses
title_full_unstemmed	Analytical and experimental studies on stress capacity with modified wood members under combined stresses
title_sort	analytical and experimental studies on stress capacity with modified wood members under combined stresses
publisher	Universidad del Bío-Bío
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000200005
work_keys_str_mv	AT abdolzadehh analyticalandexperimentalstudiesonstresscapacitywithmodifiedwoodmembersundercombinedstresses AT ebrahimigh analyticalandexperimentalstudiesonstresscapacitywithmodifiedwoodmembersundercombinedstresses AT layeghim analyticalandexperimentalstudiesonstresscapacitywithmodifiedwoodmembersundercombinedstresses AT ghassemiehm analyticalandexperimentalstudiesonstresscapacitywithmodifiedwoodmembersundercombinedstresses
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Analytical and experimental studies on stress capacity with modified wood members under combined stresses

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