RESPONSE AND DAMAGE EVOLUTION OF SINGLE EDGE NOTCHED TIMBER BEAMS UNDER THREE-POINT BENDING

Two groups of small-size single edge notched beams (SENB) made of European spruce (Picea abies) were tested in three-point bending (3PB) until failure under displacement control. The first group comprised of eight solid and two glued laminated (GL) timber beams manufactured with (a) the single edge...

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Main Authors: Eliška Šmídová, Petr Kabele, Michal Šejnoha
Format: Article
Language:English
Published: CTU Central Library 2020-03-01
Series:Acta Polytechnica CTU Proceedings
Subjects:
Online Access:https://ojs.cvut.cz/ojs/index.php/APP/article/view/6394
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author Eliška Šmídová
Petr Kabele
Michal Šejnoha
author_facet Eliška Šmídová
Petr Kabele
Michal Šejnoha
author_sort Eliška Šmídová
collection DOAJ
description Two groups of small-size single edge notched beams (SENB) made of European spruce (Picea abies) were tested in three-point bending (3PB) until failure under displacement control. The first group comprised of eight solid and two glued laminated (GL) timber beams manufactured with (a) the single edge notch at the bottom of the mid-span and (b) the reduced ligament depth. The second group consisted of four GL timber beams with the single edge notch only. We employed digital image correlation (DIC) to quantify strains and displacements, capture the damage evolution, and track the sequence of failure patterns. In this work, we present response of the beams in terms of load vs. crosshead displacement of the moving crosshead and load vs. crack tip opening displacement (CTOD).
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spelling doaj.art-fbac95593fe147048e9250107447c09c2022-12-22T01:03:40ZengCTU Central LibraryActa Polytechnica CTU Proceedings2336-53822020-03-01260949910.14311/APP.2020.26.00945012RESPONSE AND DAMAGE EVOLUTION OF SINGLE EDGE NOTCHED TIMBER BEAMS UNDER THREE-POINT BENDINGEliška Šmídová0Petr Kabele1Michal Šejnoha2Czech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicTwo groups of small-size single edge notched beams (SENB) made of European spruce (Picea abies) were tested in three-point bending (3PB) until failure under displacement control. The first group comprised of eight solid and two glued laminated (GL) timber beams manufactured with (a) the single edge notch at the bottom of the mid-span and (b) the reduced ligament depth. The second group consisted of four GL timber beams with the single edge notch only. We employed digital image correlation (DIC) to quantify strains and displacements, capture the damage evolution, and track the sequence of failure patterns. In this work, we present response of the beams in terms of load vs. crosshead displacement of the moving crosshead and load vs. crack tip opening displacement (CTOD).https://ojs.cvut.cz/ojs/index.php/APP/article/view/6394three-point bending (3pb), single edge notched beams (senb), reduced ligament depth, timber, crack tip opening displacement (ctod)
spellingShingle Eliška Šmídová
Petr Kabele
Michal Šejnoha
RESPONSE AND DAMAGE EVOLUTION OF SINGLE EDGE NOTCHED TIMBER BEAMS UNDER THREE-POINT BENDING
Acta Polytechnica CTU Proceedings
three-point bending (3pb), single edge notched beams (senb), reduced ligament depth, timber, crack tip opening displacement (ctod)
title RESPONSE AND DAMAGE EVOLUTION OF SINGLE EDGE NOTCHED TIMBER BEAMS UNDER THREE-POINT BENDING
title_full RESPONSE AND DAMAGE EVOLUTION OF SINGLE EDGE NOTCHED TIMBER BEAMS UNDER THREE-POINT BENDING
title_fullStr RESPONSE AND DAMAGE EVOLUTION OF SINGLE EDGE NOTCHED TIMBER BEAMS UNDER THREE-POINT BENDING
title_full_unstemmed RESPONSE AND DAMAGE EVOLUTION OF SINGLE EDGE NOTCHED TIMBER BEAMS UNDER THREE-POINT BENDING
title_short RESPONSE AND DAMAGE EVOLUTION OF SINGLE EDGE NOTCHED TIMBER BEAMS UNDER THREE-POINT BENDING
title_sort response and damage evolution of single edge notched timber beams under three point bending
topic three-point bending (3pb), single edge notched beams (senb), reduced ligament depth, timber, crack tip opening displacement (ctod)
url https://ojs.cvut.cz/ojs/index.php/APP/article/view/6394
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AT petrkabele responseanddamageevolutionofsingleedgenotchedtimberbeamsunderthreepointbending
AT michalsejnoha responseanddamageevolutionofsingleedgenotchedtimberbeamsunderthreepointbending