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High strain rate radial compression of Norway spruce earlywood and latewood
Department of Mechanical Engineering and Industrial Systems, Tampere University of Technology.
Department of Automation Science and Engineering, Tampere University of Technology.
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Avdelningen för kemiteknik. (High yield pulping)ORCID-id: 0000-0003-3381-5516
A Fredrikson Research & Consulting Ltd., Vähäkuja 2 A 2, Jyväskylä, Finland.
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2016 (Engelska)Ingår i: Cellulose (London), ISSN 0969-0239, E-ISSN 1572-882X, Vol. 23, nr 1, s. 873-889Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The mechanical properties of Norway spruce were studied and a compression model for mechanical pulping was developed. The split-Hopkinson pressure bar technique was combined with high-speed photography to analyse local radial compression. Data analysis focussed on the differences between mechanical properties of earlywood and latewood. Measurements were conducted at both room temperature and 135 C. The effect of prefatigue treatment was also studied. A simple material model was defined linearly in parts and fitted to the measurement data to quantify the differences. New results were found on the differences in inelastic behaviour of earlywood and latewood at large deformations. In addition, other results were in line with previously published results.

Ort, förlag, år, upplaga, sidor
2016. Vol. 23, nr 1, s. 873-889
Nyckelord [en]
Norway spruce, Radial compression, Split-Hopkinson pressure bar, High-speed photography, Local strain
Nationell ämneskategori
Pappers-, massa- och fiberteknik
Identifikatorer
URN: urn:nbn:se:miun:diva-26437DOI: 10.1007/s10570-015-0826-5ISI: 000368802700061Scopus ID: 2-s2.0-84955692300OAI: oai:DiVA.org:miun-26437DiVA, id: diva2:882242
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Publ online 26 Nov 2015

Tillgänglig från: 2015-12-14 Skapad: 2015-12-14 Senast uppdaterad: 2017-12-01Bibliografiskt granskad

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Engberg, Birgitta A.

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