The gripped-box model: A simple and robust formulation of sorption hysteresis for lignocellulosic materials
Résumé
A new formulation is proposed for describing the moisture sorption hysteresis in lignocellulosic products.
This model introduces the concept of gripped-box. This concept allows complex experimental pathways
to be fitted with only two adjustable parameters, including the closure of scanning loops without any
pumping effect. The product history is embedded in a unique internal variable, which defined the actual
window of interest. The formulation proposed in the present work can be easily implemented in existing
computational softwares. Based on comprehensive experiments, the model parameters were defined for
five lignocellulosic materials largely used in the building construction.