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Estimating material properties of solid and hollow fibers in suspension using ultrasonic attenuation
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-2388-3358
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Embedded Internet Systems Lab.
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Embedded Internet Systems Lab.ORCID iD: 0000-0002-4133-3317
2013 (English)In: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, ISSN 0885-3010, E-ISSN 1525-8955, Vol. 60, no 7, p. 1424-1434Article in journal (Refereed) Published
Abstract [en]

Estimates of the material properties of hollow fibers suspended in a fluid using ultrasound measurements and a simple, computationally efficient analytical model are made. The industrial application is to evaluate the properties of wood fibers in paper pulp. The necessity of using a layered cylindrical model (LCM) as opposed to a solid cylindrical model (SCM) for modeling ultrasound attenuation in a suspension of hollow fibers is evaluated. The two models are described and used to solve the inverse problem of estimating material properties from attenuation in suspensions of solid and hollow polyester fibers. The results show that the measured attenuation of hollow fibers differs from that of solid fibers. Elastic properties estimates using LCM with hollow-fiber suspension measurements are similar to those using SCM with solid-fiber suspension measurements and compare well to block polyester values for elastic moduli. However, using the SCM with the hollow-fiber suspension did not produce realistic estimations. In conclusion, the LCM gives reasonable estimations of hollow fiber properties and the SCM is not sufficiently complex to model hollow fibers. The results also indicate that the use of a distributed radius in the model is important in estimating material properties from fiber suspensions.

Place, publisher, year, edition, pages
2013. Vol. 60, no 7, p. 1424-1434
National Category
Bio Materials Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Wood and Bionanocomposites; Industrial Electronics
Identifiers
URN: urn:nbn:se:ltu:diva-4198DOI: 10.1109/TUFFC.2013.2714ISI: 000321629200012Scopus ID: 2-s2.0-84880567569Local ID: 21c5714b-2ac7-4750-907b-6488100f958bOAI: oai:DiVA.org:ltu-4198DiVA, id: diva2:977062
Note
Validerad; 2013; 20130629 (tlt)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Aitomäki, YvonneLöfqvist, TorbjörnDelsing, Jerker

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