One-dimension visco-elastic modelling of wood in the process of formation to clarify the Hygrothermal Recovery behavior of tension wood

Marie Capron (1, 2) , Sandrine Bardet (3, 4) , K. C. Sujan (1, 5) , M. Matsuo (1) , H. Yamamoto (1)

1 Graduate School of Bioagricultural Sciences
2 ESRF - European Synchrotron Radiation Facility
3 LMGC - Laboratoire de Mécanique et Génie Civil
4 BOIS - Bois
5 Institute of Wood Technology

Wood production on stem by deposit of concentric layers on its periphery are going along with the setting up of growth stress. Growth stress has two origins: (1) loading due to weight of the structure is applied progressively when the tree is growing; (2) cell maturation, which happened at the end of the deposit of a new layer, causes an expansion, called maturation deformation, which can’t happen freely due to the previous layer and lead to the creation of initial growth stress [1]. The growth stress can be released during cutting and also during hygrothermal treatment (HT), it can be called Hygrothermal Recovery (HTR) [2].

Mots clés: visco-elactic model; hygrothermal recovery; tension and normal wood; wood maturation; wood behaviour

Domaines: Mécanique [physics.med-ph]

Marie Capron, Sandrine Bardet, K. C. Sujan, M. Matsuo, H. Yamamoto. One-dimension visco-elastic modelling of wood in the process of formation to clarify the Hygrothermal Recovery behavior of tension wood. CompWood 2017, Jun 2017, Vienne, Austria. pp.50. ⟨hal-01553677⟩