Shear failure mechanism III in cross laminated timber : Numerical investigations of fracture behaviour
Danielsson, Henrik LU
and Serrano, Erik
LU
(2023)
World Conference on Timber Engineering (WCTE 2023)
p.2396-2405
- Abstract
- The paper deals with numerical investigations of load-bearing capacity and fracture behaviour of Cross
Laminated Timber at in-plane shear loading. Focus is on shear failure mechanism III, i.e. failure in the crossing areas
between flatwise bonded laminations, and on evaluating test methods for that failure mode. In current design provisions,
this failure mode is characterised by the rolling shear strength, fv,R , and the torsional shear strength, fv,tor , and therefore
testing including both transverse (rolling) shear and torsional shear is needed. Two such test set-ups are investigated, one
aiming at evaluating torsional shear strength and one aiming at evaluating rolling shear strength. Full 3D finite... (More) - The paper deals with numerical investigations of load-bearing capacity and fracture behaviour of Cross
Laminated Timber at in-plane shear loading. Focus is on shear failure mechanism III, i.e. failure in the crossing areas
between flatwise bonded laminations, and on evaluating test methods for that failure mode. In current design provisions,
this failure mode is characterised by the rolling shear strength, fv,R , and the torsional shear strength, fv,tor , and therefore
testing including both transverse (rolling) shear and torsional shear is needed. Two such test set-ups are investigated, one
aiming at evaluating torsional shear strength and one aiming at evaluating rolling shear strength. Full 3D finite element
analyses applying a cohesive zone model approach were used to study the strength and fracture behaviour. Failure criteria
for structural design, material strength parameters, and the suitability of the two test configurations to determine strength
parameters are discussed in relation to findings from the numerical investigations. One main conclusion from the
investigation is that expected test results using the torsional test set-up are less size dependent as compared to test results
using the transverse set-up. The numerical analyses suggest a very small influence from tensile loading perpendicular to
the crossing area, for both test set-ups. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/9baed5ef-1afe-4677-90e0-9f1fe619d819
- author
- Danielsson, Henrik
LU
and Serrano, Erik
LU
- organization
- publishing date
- 2023-06
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Proceedings from the 13th World Conference on Timber Engineering (2023)
- editor
- Nyrud, Anders Q. ; Malo, Kjell Arne and Nore, Kristine
- pages
- 2396 - 2405
- publisher
- World Conference on Timber Engineering (WCTE)
- conference name
- World Conference on Timber Engineering (WCTE 2023)
- conference location
- Olso, Norway
- conference dates
- 2023-06-19 - 2023-06-22
- external identifiers
-
- scopus:85171454751
- ISBN
- 9781713873273
- DOI
- 10.52202/069179-0317
- project
- Strength and fracture analysis of cross laminated timber
- InnoCrossLam: Innovative Solutions for Cross Laminated Timber Structures
- language
- English
- LU publication?
- yes
- id
- 9baed5ef-1afe-4677-90e0-9f1fe619d819
- date added to LUP
- 2023-06-28 23:42:45
- date last changed
- 2024-04-08 07:48:22
@inproceedings{9baed5ef-1afe-4677-90e0-9f1fe619d819,
abstract = {{The paper deals with numerical investigations of load-bearing capacity and fracture behaviour of Cross<br/>Laminated Timber at in-plane shear loading. Focus is on shear failure mechanism III, i.e. failure in the crossing areas<br/>between flatwise bonded laminations, and on evaluating test methods for that failure mode. In current design provisions,<br/>this failure mode is characterised by the rolling shear strength, fv,R , and the torsional shear strength, fv,tor , and therefore<br/>testing including both transverse (rolling) shear and torsional shear is needed. Two such test set-ups are investigated, one<br/>aiming at evaluating torsional shear strength and one aiming at evaluating rolling shear strength. Full 3D finite element<br/>analyses applying a cohesive zone model approach were used to study the strength and fracture behaviour. Failure criteria<br/>for structural design, material strength parameters, and the suitability of the two test configurations to determine strength<br/>parameters are discussed in relation to findings from the numerical investigations. One main conclusion from the<br/>investigation is that expected test results using the torsional test set-up are less size dependent as compared to test results<br/>using the transverse set-up. The numerical analyses suggest a very small influence from tensile loading perpendicular to<br/>the crossing area, for both test set-ups.}},
author = {{Danielsson, Henrik and Serrano, Erik}},
booktitle = {{Proceedings from the 13th World Conference on Timber Engineering (2023)}},
editor = {{Nyrud, Anders Q. and Malo, Kjell Arne and Nore, Kristine}},
isbn = {{9781713873273}},
language = {{eng}},
pages = {{2396--2405}},
publisher = {{World Conference on Timber Engineering (WCTE)}},
title = {{Shear failure mechanism III in cross laminated timber : Numerical investigations of fracture behaviour}},
url = {{http://dx.doi.org/10.52202/069179-0317}},
doi = {{10.52202/069179-0317}},
year = {{2023}},
}