Fulltext

Combination of X-ray and digital image correlation for the analysis of moisture-induced strain in wood: opportunities and challenges = Kombination von Röntgenmessung und digitaler Bildkorrelation zur Dehnungsanalyse an Holz: Potential und Schwierigkeiten

Keunecke, Daniel ; Novosseletz, Katia ; Lanvermann, Christian ; Mannes, David ; Niemz, Peter

In: European Journal of Wood and Wood Products, 2012, vol. 70, no. 4, p. 407-413

Aggiungi alla tua lista
    Titre
    • Combination of X-ray and digital image correlation for the analysis of moisture-induced strain in wood: opportunities and challenges
    Titre traduit ()
    • Kombination von Röntgenmessung und digitaler Bildkorrelation zur Dehnungsanalyse an Holz: Potential und Schwierigkeiten
    Auteur
    • Keunecke, Daniel. Institute for Building Materials (Wood Physics), ETH Zurich, 8093, Zurich, Switzerland
    • Novosseletz, Katia. Faculty of Wood Sciences and Technology, Technical University in Zvolen, 96001, Zvolen, Slovakia
    • Lanvermann, Christian. Institute for Building Materials (Wood Physics), ETH Zurich, 8093, Zurich, Switzerland
    • Mannes, David. Spallation Neutron Source Division (ASQ), Paul Scherrer Institute, 5232, Villigen, Switzerland
    • Niemz, Peter. Institute for Building Materials (Wood Physics), ETH Zurich, 8093, Zurich, Switzerland
    Type de document
    • Postprint
    Langue
    • Inglese
    Publié dans
    • European Journal of Wood and Wood Products, 2012, vol. 70, no. 4, p. 407-413. Springer-Verlag
    Autre version électronique
    Classification
    • Technologie, Sciences de l'ingénieur
    Identifiant OAI-PMH
    • oai:doc.rero.ch:311028
    Summary
    In this present study, the moisture-induced deformation behaviour of a spruce sample was analysed one- and two-dimensionally with high resolution on the radial-tangential surface. For this purpose, an artificial speckle pattern was applied to the surface which was then recorded by a CCD camera during the deformation. The generated TIF images were analysed with a strain mapping software (VIC 2D) that computed the two-dimensional strain field from the surface deformation. Selected options to evaluate two-dimensional data generated with X-ray imaging and digital image correlation are presented. Combining and correlating these techniques enables detailed analysis of structure-function relationships during swelling (and shrinkage) processes in wood. However, several issues still have to be solved to enhance effectiveness and user-friendliness of such investigations, as elucidated in detail in this paper