Speaker
Dr
Michele Griffa
(Laboratory for Building Science and Technology, EMPA, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland)
Description
Wood is a cellular biological material with strong coupling in mechanical and moisture behavior. Imaged with synchrotron radiation phase contrast X-ray tomographic microscopy, hysteretic reversible swelling/shrinkage due to ad/desorption of water vapor displays a non-affine component, particularly in low-density earlywood. Local cellular deformation of restrained swelling is documented. These measurements are used to validate poromechanical modeling of swelling at the cellular scale.
Please specify the session
Imaging
Please specify poster or talk
poster
Primary author
Dr
Michele Griffa
(Laboratory for Building Science and Technology, EMPA, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland)
Co-authors
Mr
Ahmad Rafsanjani
(Wood Laboratory, EMPA, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland)
Ms
Alessandra Patera
(Laboratory for Building Science and Technology, EMPA, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland)
Prof.
Dominique Derome
(Wood Laboratory, EMPA, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland)
Prof.
Jan Carmeliet
(Laboratory for Building Science and Technology, EMPA, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland and Chair of Building Physics, Institute for Technology in Architecture, ETHZ, Zürich, Switzerland)
