Numerical Analysis of Cross-Laminated Timber Panels Under Three-Point Bending Using Laminate Theory

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F25%3A43927836" target="_blank" >RIV/62156489:43410/25:43927836 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.3390/ma18225232" target="_blank" >https://doi.org/10.3390/ma18225232</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma18225232" target="_blank" >10.3390/ma18225232</a>

Result language

angličtina

Original language name

Numerical Analysis of Cross-Laminated Timber Panels Under Three-Point Bending Using Laminate Theory

Original language description

Cross-laminated timber (CLT) panels, composed of orthogonally bonded layers, are often used in civil engineering and tall constructions owing to their sustainability, prefabrication advantages and favourable mechanical performance. However, their multilayered, anisotropic and shear-compliant nature presents significant challenges for accurate structural modelling and performance prediction. This study presents an advanced numerical approach to analysing the bending behaviour of CLT panels using the finite element method (FEM) in combination with the classical laminate theory. The proposed plate model was implemented in FlexPDE and validated through a series of three-point bending experiments on three-layer spruce panels. Further verification was conducted using commercial FEM software-Dlubal, incorporating both linear elastic and non-linear damage models, and Abaqus, where a three-dimensional solid model with a cohesive zone formulation captured progressive delamination and local failure in the glued layers. Comparison of the experimental data and numerical simulations revealed strong agreement in load-deflection behaviour, stiffness evolution and damage localisation. The framework we developed accurately reproduces both the global and the local mechanical responses of CLT panels while maintaining computational efficiency. Our results confirm the reliability of laminate theory-based FEM formulations in the design, optimisation and safety assessment of cross-laminated timber structures in building applications.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20502 - Paper and wood

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materials

ISSN

1996-1944

e-ISSN

1996-1944

Volume of the periodical

18

Issue of the periodical within the volume

22

Country of publishing house

CH - SWITZERLAND

Number of pages

18

Pages from-to

5232

UT code for WoS article

001624353300001

EID of the result in the Scopus database

2-s2.0-105023131806