Mechanical performance and contact zone of timber joint with oblique faces
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F15%3A43906412" target="_blank" >RIV/62156489:43410/15:43906412 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68378297:_____/15:00446321
Výsledek na webu
<a href="http://acta.mendelu.cz/63/4/1153/" target="_blank" >http://acta.mendelu.cz/63/4/1153/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.11118/actaun201563041153" target="_blank" >10.11118/actaun201563041153</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Mechanical performance and contact zone of timber joint with oblique faces
Popis výsledku v původním jazyce
The goal of the work was to evaluate mechanical performance of full-scale timber beams containing scarf joint with a dowel. Work focused on standard testing using modular system to obtain effective stiffness and strength of the beams with and without the joint. The work further researched a contact zone between two timber parts of the joint - at the scarf face. This was carried out using non-destructive optical technique - digital image correlation (DIC) and newly developed algorithm. The joint was made of Norway spruce, dims. 6x0.2x0.24 m and was loaded by two modes: a) 3-point bending and b) 4-point bending. During the loading, a sequence of images was acquired for further investigation of contact zone using the proposed algorithm. The joint with scarf and dowel provided enough effective stiffness, ie. 73-93% for 3-point bending test and 71% for 4-point bending with respect to MOE measured on reference solid beams. Effective strength of the joint was also relatively high and in a range of 55% and 60% with respect to reference solid beams in both 3-point and 4-point bending tests. Contact length differed for loading modes. Mean contact length in symmetrical 4-point bending was about 40%, for asymmetrical 3-point bending test, it was approx. 20% on face closer to support and 44% on a face closer to loads.
Název v anglickém jazyce
Mechanical performance and contact zone of timber joint with oblique faces
Popis výsledku anglicky
The goal of the work was to evaluate mechanical performance of full-scale timber beams containing scarf joint with a dowel. Work focused on standard testing using modular system to obtain effective stiffness and strength of the beams with and without the joint. The work further researched a contact zone between two timber parts of the joint - at the scarf face. This was carried out using non-destructive optical technique - digital image correlation (DIC) and newly developed algorithm. The joint was made of Norway spruce, dims. 6x0.2x0.24 m and was loaded by two modes: a) 3-point bending and b) 4-point bending. During the loading, a sequence of images was acquired for further investigation of contact zone using the proposed algorithm. The joint with scarf and dowel provided enough effective stiffness, ie. 73-93% for 3-point bending test and 71% for 4-point bending with respect to MOE measured on reference solid beams. Effective strength of the joint was also relatively high and in a range of 55% and 60% with respect to reference solid beams in both 3-point and 4-point bending tests. Contact length differed for loading modes. Mean contact length in symmetrical 4-point bending was about 40%, for asymmetrical 3-point bending test, it was approx. 20% on face closer to support and 44% on a face closer to loads.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
AL - Umění, architektura, kulturní dědictví
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/DF12P01OVV004" target="_blank" >DF12P01OVV004: Návrh a posuzování dřevěných tesařských spojů historických konstrukcí</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2015
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
ISSN
1211-8516
e-ISSN
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Svazek periodika
63
Číslo periodika v rámci svazku
4
Stát vydavatele periodika
CZ - Česká republika
Počet stran výsledku
7
Strana od-do
1153-1159
Kód UT WoS článku
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EID výsledku v databázi Scopus
2-s2.0-84943236425