CONSTITUTIVE MODEL FOR TIMBER FRACTURE USED FOR FE SIMULATION OF LVL ARCH

Non-linear finite element simulation of four-point bending test of a small-size arch is described in this paper. The arch of 780mm span is made of Yellow Poplar (<em>Liriodendron tulipifera</em>) laminated veneer lumber (LVL) and it is manufactured with a through crack parallel to fibers...

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Main Authors: Eliška Šmídová, Petr Kabele
Format: Article
Language:English
Published: CTU Central Library 2018-12-01
Series:Acta Polytechnica CTU Proceedings
Subjects:
Online Access:https://ojs.cvut.cz/ojs/index.php/APP/article/view/5341
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author Eliška Šmídová
Petr Kabele
author_facet Eliška Šmídová
Petr Kabele
author_sort Eliška Šmídová
collection DOAJ
description Non-linear finite element simulation of four-point bending test of a small-size arch is described in this paper. The arch of 780mm span is made of Yellow Poplar (<em>Liriodendron tulipifera</em>) laminated veneer lumber (LVL) and it is manufactured with a through crack parallel to fibers in the middle of its crown. 2D homogeneous orthotropic constitutive model of tensile and shear fracture in timber that has been recently developed and implemented into ATENA<sup>®</sup> element software by the authors is used for the numerical calculation. Both standard and compact tension (CT) test results are used for the material model calibration. Results show that the model successfully reproduces the increasing part of the load-displacement response. Furthermore, the model can capture the most distinctive features of the crack pattern.
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spelling doaj.art-5fb7cf364311468f8be3528a522d1fec2022-12-22T02:10:05ZengCTU Central LibraryActa Polytechnica CTU Proceedings2336-53822018-12-0115010911310.14311/APP.2018.15.01094363CONSTITUTIVE MODEL FOR TIMBER FRACTURE USED FOR FE SIMULATION OF LVL ARCHEliška ŠmídováPetr KabeleNon-linear finite element simulation of four-point bending test of a small-size arch is described in this paper. The arch of 780mm span is made of Yellow Poplar (<em>Liriodendron tulipifera</em>) laminated veneer lumber (LVL) and it is manufactured with a through crack parallel to fibers in the middle of its crown. 2D homogeneous orthotropic constitutive model of tensile and shear fracture in timber that has been recently developed and implemented into ATENA<sup>®</sup> element software by the authors is used for the numerical calculation. Both standard and compact tension (CT) test results are used for the material model calibration. Results show that the model successfully reproduces the increasing part of the load-displacement response. Furthermore, the model can capture the most distinctive features of the crack pattern.https://ojs.cvut.cz/ojs/index.php/APP/article/view/5341timber, 2D constitutive model, orthotropic elasticity, orthotropic Tsai-Hill failure criterion, fixed smeared crack model, traction-separation law, compact tension test
spellingShingle Eliška Šmídová
Petr Kabele
CONSTITUTIVE MODEL FOR TIMBER FRACTURE USED FOR FE SIMULATION OF LVL ARCH
Acta Polytechnica CTU Proceedings
timber, 2D constitutive model, orthotropic elasticity, orthotropic Tsai-Hill failure criterion, fixed smeared crack model, traction-separation law, compact tension test
title CONSTITUTIVE MODEL FOR TIMBER FRACTURE USED FOR FE SIMULATION OF LVL ARCH
title_full CONSTITUTIVE MODEL FOR TIMBER FRACTURE USED FOR FE SIMULATION OF LVL ARCH
title_fullStr CONSTITUTIVE MODEL FOR TIMBER FRACTURE USED FOR FE SIMULATION OF LVL ARCH
title_full_unstemmed CONSTITUTIVE MODEL FOR TIMBER FRACTURE USED FOR FE SIMULATION OF LVL ARCH
title_short CONSTITUTIVE MODEL FOR TIMBER FRACTURE USED FOR FE SIMULATION OF LVL ARCH
title_sort constitutive model for timber fracture used for fe simulation of lvl arch
topic timber, 2D constitutive model, orthotropic elasticity, orthotropic Tsai-Hill failure criterion, fixed smeared crack model, traction-separation law, compact tension test
url https://ojs.cvut.cz/ojs/index.php/APP/article/view/5341
work_keys_str_mv AT eliskasmidova constitutivemodelfortimberfractureusedforfesimulationoflvlarch
AT petrkabele constitutivemodelfortimberfractureusedforfesimulationoflvlarch