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Influence of strain...
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Moilanen, CarolinaTampere Univ Technol, Finland
(författare)
Influence of strain rate, temperature and fatigue on the radial compression behaviour of Norway spruce
- Artikel/kapitelEngelska2017
Förlag, utgivningsår, omfång ...
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2017-04-07
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Walter de Gruyter GmbH,2017
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:miun-30841
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https://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-30841URI
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https://doi.org/10.1515/hf-2016-0144DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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A dynamic elastoplastic compression model of Norway spruce for virtual computer optimization of mechanical pulping processes was developed. The empirical wood behaviour was fitted to a Voigt-Kelvin material model, which is based on quasi static compression and high strain rate compression tests (QSCT and HSRT, respectively) of wood at room temperature and at high temperature (80-100 degrees C). The effect of wood fatigue was also included in the model. Wood compression stress-strain curves have an initial linear elastic region, a plateau region and a densification region. The latter was not reached in the HSRT. Earlywood (EW) and latewood (LW) contributions were considered separately. In the radial direction, the wood structure is layered and can well be modelled by serially loaded layers. The EW model was a two part linear model and the LW was modelled by a linear model, both with a strain rate dependent term. The model corresponds well to the measured values and this is the first compression model for EW and LW that is based on experiments under conditions close to those used in mechanical pulping.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Björkqvist, TomasTampere Univ Technol, Finland
(författare)
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Ovaska, MarkusAalto Univ, Finland
(författare)
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Koivisto, JuhaAalto Univ, Finland
(författare)
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Miksic, AmandineAalto Univ, Finland
(författare)
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Engberg, Birgitta A.,1975-Mittuniversitetet,Avdelningen för kemiteknik(Swepub:miun)birsve
(författare)
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Salminen, Lauri I.VTT, Finland
(författare)
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Saarenrinne, PenttiTampere Univ Technol, Finland
(författare)
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Alava, MikkoAalto Univ, Finland
(författare)
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Tampere Univ Technol, FinlandAalto Univ, Finland
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Holzforschung: Walter de Gruyter GmbH71:6, s. 505-5140018-38301437-434X
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