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Use of microtomography to measure resin penetration and strains in wood/FRP bonds
1999 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The durability of hybrid system Wood/FiberReinforcedPolymers, is postulated to be impacted by damages created due to differential hygrothermal material movement. Such damages could result in both failed bonds between the two materials as well as changes in microstructural features. This study investigates penetration of resin into wood cells and if there is any strain developed in the Wood/FRP due to moisture cycling. The method used to measure resin penetration and strain in the Wood/FRP is a non-destructive technique called microtomography. The data obtained from the microtomography were then reconstructed and image analysis conducted in VoxelView. The analysis showed that both the diameter of the cell lumen and the grain angles are variables that contribute to the resin penetration in the wood. The major strain developed due to the moisture cycling was located in the wood. Both test samples showed tendencies of delamination between the resin line and the FRP.

Place, publisher, year, edition, pages
Keyword [en]
Technology, Wood, FiberReinforcedFiber, Microtomography, Strain, Moisture, Cycling, Resin Penetration
Keyword [sv]
URN: urn:nbn:se:ltu:diva-56698ISRN: LTU-EX--99/280--SELocal ID: d72a9eb5-f01e-4889-8a91-e5e72b753caaOAI: diva2:1030085
Subject / course
Student thesis, at least 30 credits
Educational program
Civil Engineering programmes 1997-2000, master's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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