Time-resolved X-ray microtomographic measurement of water transport in wood-fibre reinforced composite material

Arttu Miettinen, Tero Harjupatana, Markku Kataja, Stefania Fortino, Kirsi Immonen

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review


Natural fibre composites are prone to adsorb moisture from the environment which may lead to dimensional changes, mold growth, degradation of mechanical properties or other adverse effects. In this work we develop a method for direct non-intrusive measurement of local moisture content inside a material sample. The method is based on X-ray microtomography, digital image correlation and image analysis. As a first application of the method we study axial transport of water in a cylindrical polylactic acid/birch pulp composite material sample with one end exposed to water. Based on the results, the method seems to give plausible estimates of water content profile inside the cylindrical sample. The results may be used, e.g. in developing and validating models of moisture transport in biocomposites.
Original languageEnglish
Article number012037
Number of pages8
JournalIOP Conference Series: Materials Science and Engineering
Issue number1
Publication statusPublished - 2016
MoE publication typeA4 Article in a conference publication
Event29th Riso International Symposium on Materials Science, Energy materials: advances in characterization, modelling and application - Roskilde, Denmark
Duration: 1 Sep 20085 Sep 2008



  • X-ray microtomography
  • wood-fibres
  • PLA
  • biocomposites
  • water tranport
  • ProperTune

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