Fracture predictions in impact three-point bending test of European beech

Hardwood has become widespread in European forests. The strongest factor is climate change and damage to conifers by the bark beetle. The effort to study hardwoods grows with increasing volume of applications. Therefore, European beech wood was investigated under two impact loads in two material dir...

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Bibliographic Details
Published in:Journal of wood science 2024-08, Vol.70 (1), p.42-12, Article 42
Main Authors: Kubík, Petr, Šebek, František, Hassan Vand, Mojtaba, Brabec, Martin, Tippner, Jan
Format: Article
Language:English
Subjects:
Anisotropy
Bark
Barlat
Beech
Biomedical and Life Sciences
Characterization and Evaluation of Materials
Climate change
Coefficient of friction
Cracking (fracturing)
Dynamic
Explicit
Flexure
Hardwoods
Impact loads
Investigations
Life Sciences
Materials Science
Moisture content
Original Article
Rupture
Trees
Wood Science & Technology
Wood sciences
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Summary:Hardwood has become widespread in European forests. The strongest factor is climate change and damage to conifers by the bark beetle. The effort to study hardwoods grows with increasing volume of applications. Therefore, European beech wood was investigated under two impact loads in two material directions, resulting in four unique combinations supplemented by the measurement of the friction coefficient. Then, it was computationally simulated to reproduce the cracking, while the material model reflected the orthotropic behaviour in elasticity, plasticity and failure. The model was coded using the user subroutine in Abaqus to initiate and propagate the crack using the element deletion. The resulting reaction forces were in good agreement with those from the experiments. Cracking was numerically simulated in three of four cases as experimentally observed, however, upon larger deflections. Therefore, the model is applicable for further investigations.
ISSN:1611-4663
1435-0211
1611-4663
DOI:10.1186/s10086-024-02157-x