Stöcklein, Josef
[Author];
Kaliske, Michael
[Author]
Thermo-hygro-mechanically coupled modelling of wood including two-phase moisture diffusion for transient simulation of wooden structures at mechanical and climatic loads
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Media type:
E-Article
Title:
Thermo-hygro-mechanically coupled modelling of wood including two-phase moisture diffusion for transient simulation of wooden structures at mechanical and climatic loads
Contributor:
Stöcklein, Josef
[Author];
Kaliske, Michael
[Author]
Published:
Berlin ; Heidelberg: Springer, [2024]
Published in:Heat and mass transfer ; 59 (2023), Seite 67-79
Description:
A model to predict the thermo-hygro-mechanical behaviour of wood is introduced. The description of the transport processes of moisture and heat are combined with a model for the mechanical response. Moisture transport is represented by a two-phase multi-FICKian approach, considering bound water and water vapour. For the mechanical response, a moisture- and temperature-dependent, orthotropic, elastic material formulation is used. The theoretical basis of the model and the numerical implementation of the monolithic solution into a Finite Element framework are discussed as well as its verification and validation. With this model at hand, arbitrary wooden structures can be simulated in a transient manner subjected to climatic and mechanical loads. In the contribution, the approach is applied to the analysis of a panel painting by L. CRANACH the Elder.