An overview of lab-based micro computed tomography aided finite element modelling of wood and its current bottlenecks

S Florisson, EK Gamstedt - Holzforschung, 2023 - degruyter.com
Microscopic lab-based X-ray computed tomography (XµCT) aided finite element (FE)
modelling is a popular method with increasing nature within material science to predict local …

Linear viscoelastic transversely isotropic model based on the spectral decomposition of elasticity tensors

MJ Lewandowski-Szewczyk, B Grzeszykowski… - International Journal of …, 2023 - Elsevier
The linear viscoelasticity is still a useful model in the engineering for studying the behavior
of materials loaded with different loading rates (frequencies). Certain types of materials …

[HTML][HTML] Tell-tale signals: faces reveal playful and aggressive mood in wolves

V Maglieri, F Mastrandrea, A Galotti, M Böye, S Laurent… - Animal Behaviour, 2024 - Elsevier
Highlights•Wolf facial displays differ strongly in playful and aggressive contexts.•During
aggression three different threatening faces can be present.•Wolves display two different …

Hygro-mechanical long-term behaviour of spruce, pine and lime wood: parameter identification and model validation

J Stöcklein, G Grajcarek, D Konopka… - Wood Science and …, 2024 - Springer
Lime wood, spruce and pine are investigated with regard to its hygro-mechanical long-term
behaviour. Experiments are conducted for an identification of model parameters and for …

Microprestress Theory for the Prediction of Mechanosorptive Creep in Wood

SA Brown, G Di Luzio, G Cusatis - Journal of Engineering …, 2024 - ascelibrary.org
Mass timber has gained increasing focus as a sustainable alternative to concrete structures,
and recent innovations have allowed timber buildings as high as 25 stories. However …

[HTML][HTML] Viscoelastic behavior of softwood based on a multiscale computational homogenization

R Bengtsson, M Mousavi, R Afshar, EK Gamstedt - Mechanics of Materials, 2023 - Elsevier
In the present study, a numerical multiscale model is made to show how the hierarchical
structure of softwood affect its macroscopic viscoelastic properties. The performance of the …

Evaluating the viscoelastic shear properties of clear wood via off-axis compression testing and digital-image correlation

R Bengtsson, L Bergeron, R Afshar, M Mousavi… - Mechanics of Time …, 2024 - Springer
Highly anisotropic materials like wood and unidirectional polymer composite structures are
sensitive to shear deformations, in particular close to fixed joints. Large wooden structures in …

A constitutive model considering creep damage of wood

M Trcala, P Suchomelová, M Bošanský… - Mechanics of Time …, 2024 - Springer
The serviceability of wooden structures involves multiphysical phenomena, notably the
interactions among creep, plasticity, and damage. The influence of creep on the initialization …

The generalized Kelvin chain-based model for an orthotropic viscoelastic material

M Trcala, P Suchomelová, M Bošanský… - Mechanics of Time …, 2024 - Springer
We propose a constitutive material model to describe the rheological (viscoelastic)
mechanical response of timber. The viscoelastic model is based on the generalized Kelvin …

Material aspects of wooden towers for offshore wind turbines

EK Gamstedt, R Bengtsson, S Florisson… - IOP Conference …, 2023 - iopscience.iop.org
Possible new innovative materials for Counter Rotating Axis Floating Tilted Turbines are
studied and discussed. The 40 MW version of the Counter Rotating Axis Floating Tilted …