In this paper a numerical method for the evaluation of moisture induced stresses in timber structures is proposed. A multi-Fickian approach for the moisture transfer modelling is used. A moisture-stress analysis based on a 3D orthotropic-viscoelastic-mechanosorptive model for wood is performed by using the Abaqus FEM code. The constitutive model and the needed equations of moisture diffusion are implemented into some Abaqus user subroutines. The results, in terms of moisture content and stress, are compared with experimental data available in the literature for glulam beams subjected to moisture gradients.
|Title of host publication||Structures and Architecture|
|Subtitle of host publication||Proceedings of the First International Conference on Structures and Architecture, ICSA 2010, Guimarães, Portugal, 21-23 July 2010|
|Editors||Paulo J. da Sousa Cruz|
|Place of Publication||London|
|Publication status||Published - 2010|
|MoE publication type||B3 Non-refereed article in conference proceedings|
|Event||1st International Conference on Structures & Architecture, ICSA2010 - Guimaraes, Portugal|
Duration: 21 Jul 2010 → 23 Jul 2010
|Conference||1st International Conference on Structures & Architecture, ICSA2010|
|Period||21/07/10 → 23/07/10|
- timber structures
- moisture transfer
- stress analysis
Fortino, S., Toratti, T., & Mendicino, A. L. (2010). Stress analysis of timber structures under variable humidity conditions by using a multi-Fickian moisture transfer model. In P. J. da Sousa Cruz (Ed.), Structures and Architecture: Proceedings of the First International Conference on Structures and Architecture, ICSA 2010, Guimarães, Portugal, 21-23 July 2010 (pp. 452-459). CRC Press.