About: Mechanical properties of wood examined by semi-destructive devices

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	This study presents a comparative evaluation of semi-destructive and destructive testing of wood. Semi-destructive methods are represented by screw-withdrawal test, microdrilling, pin penetration and a new construction of a diagnostic device for in situ evaluation of timber based on the principle of measuring the mechanical resistance to pin being pushed gradually into wood. In order to ascertain the differences between the methods, measuring of three basic softwood species was conducted. One of the aims was to capture the variability of properties brought about by the distribution of properties along the diameter and along the trunk (section) length; therefore, an entire trunk of spruce, fir and pine were used for testing. The accuracy of the prediction of mechanical properties provided by the semi-destructive devices was verified using correlations with mechanical properties established by standard pressure tests in compliance with European norms. The results show a very good correlation of the mean force necessary to push the pin in the timber with wood density and strength in compression along the grain found in standard specimens. This study presents a comparative evaluation of semi-destructive and destructive testing of wood. Semi-destructive methods are represented by screw-withdrawal test, microdrilling, pin penetration and a new construction of a diagnostic device for in situ evaluation of timber based on the principle of measuring the mechanical resistance to pin being pushed gradually into wood. In order to ascertain the differences between the methods, measuring of three basic softwood species was conducted. One of the aims was to capture the variability of properties brought about by the distribution of properties along the diameter and along the trunk (section) length; therefore, an entire trunk of spruce, fir and pine were used for testing. The accuracy of the prediction of mechanical properties provided by the semi-destructive devices was verified using correlations with mechanical properties established by standard pressure tests in compliance with European norms. The results show a very good correlation of the mean force necessary to push the pin in the timber with wood density and strength in compression along the grain found in standard specimens. (en)
Title	Mechanical properties of wood examined by semi-destructive devices Mechanical properties of wood examined by semi-destructive devices (en)
skos:prefLabel	Mechanical properties of wood examined by semi-destructive devices Mechanical properties of wood examined by semi-destructive devices (en)
skos:notation	RIV/62156489:43410/14:00208501!RIV15-MSM-43410___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(DF11P01OVV001), S
http://linked.open...iv/cisloPeriodika	1-2
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Tippner, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Mendelova univerzita v Brně / Lesnická a dřevařská fakulta
http://linked.open...dnocenehoVysledku	28082
http://linked.open...ai/riv/idVysledku	RIV/62156489:43410/14:00208501
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	NDT; Mean force; Wood strength; Resistance; Pin; Density (en)
http://linked.open.../riv/klicoveSlovo	Resistance Density NDT Pin Mean force Wood strength
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[635D810CB2F1]
http://linked.open...i/riv/nazevZdroje	Materials and Structures
http://linked.open...in/vavai/riv/obor	JJ
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Diagnosis of deterioration and lifetime of objects of cultural heritage
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	47
http://linked.open...iv/tvurceVysledku	Kloiber, Michal Tippner, Jan Hrivnák, Jaroslav
http://linked.open...ain/vavai/riv/wos	330828000015
issn	1359-5997
number of pages	14 (xsd:int)
http://bibframe.org/vocab/doi	10.1617/s11527-013-0055-z
http://localhost/t...ganizacniJednotka	43410

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