6533b830fe1ef96bd1297ce4
RESEARCH PRODUCT
Time-resolved X-ray microtomographic measurement of water transport in wood-fibre reinforced composite material
Markku KatajaTero HarjupatanaStefania FortinoKirsi ImmonenArttu Miettinensubject
Digital image correlationMaterials sciencewood-fibresX-ray microtomographic measurementcomposite materialsengineering.materialmedicine.disease_causechemistry.chemical_compoundPolylactic acidMoldmedicineComposite materialWood fibreWater contentProperTunebiocompositesWater transportMoisturevesikuljetusPulp (paper)wood-fibrechemistryX-ray microtomographyengineeringPLAwater tranportdescription
Natural fibre composites are prone to absorb 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 profiles inside the cylindrical sample. The results may be used, e.g., in developing and validating models of moisture transport in biocomposites. peerReviewed
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-07-01 | IOP Conference Series: Materials Science and Engineering |