Title

Hygro-mechanical behaviour of rotary-cut poplar veneers during drying: characterization and modelling

Abstract

Peeled veneers undergo deformations caused by the shrinkage of wood fibers during drying. This phenomenon remains poorly documented in the scientific literature. It is generally investigated either from the perspective of industrial processes or on larger wood elements, for which shrinkage is assessed at a global scale. This thesis therefore focuses on the behavior of thin veneers, whose deformations are strongly influenced by local variations in shrinkage. To address this objective, the development of waviness during drying was analyzed in order to gain a better understanding of the origin of veneer deformations. In addition, a non-destructive method based on light diffusion through the fibrous structure of wood was developed
to estimate local moisture content. Finally, a first numerical modeling approach was undertaken to reproduce some of the mechanisms identified through experimental observations.

Examination Committee

• Romain REMOND Full Professor LERMAB Reviewer
• Sandrine BARDET Associate Professor, HDR LMGC Reviewer
• Marianne PERRIN Full Professor ICA Examiner
• Louis DENAUD Full Professor LaBoMaP PhD Supervisor
• Joffrey VIGUIER Associate Professor LaBoMaP PhD Co-supervisor
• Stéphane GIRARDONAssociate Professor LaBoMaP PhD Co-supervisor

Practical Information

Location
Amphithéâtre II Zimberlin
Arts et Métiers Campus, Cluny
13 rue Porte de Paris
71250 Cluny, France

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Further Information

Find out more about the PhD candidate:
View Delin SOH MBOU’s profile