Influence of strain rate, temperature and fatigue on the radial compression behaviour of Norway spruce

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Fältnamn	Indikatorer	Metadata
000		03184naa a2200481 4500
001		oai:DiVA.org:miun-30841
003		SwePub
008		170609s2017 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-308412 URI
024	7	a https://doi.org/10.1515/hf-2016-01442 DOI
040		a (SwePub)miun
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Moilanen, Carolinau Tampere Univ Technol, Finland4 aut
245	1 0	a Influence of strain rate, temperature and fatigue on the radial compression behaviour of Norway spruce
264		c 2017-04-07
264	1	b Walter de Gruyter GmbH,c 2017
338		a print2 rdacarrier
520		a 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.
650	7	a TEKNIK OCH TEKNOLOGIERx Kemiteknik0 (SwePub)2042 hsv//swe
650	7	a ENGINEERING AND TECHNOLOGYx Chemical Engineering0 (SwePub)2042 hsv//eng
653		a radial compression behaviour
653		a dynamic modelling of defibration
653		a earlywood
653		a high strain rate test
653		a latewood
653		a moist Norway spruce
653		a split-Hopkinson pressure bar
653		a Voigt-Kelvin material model
700	1	a Björkqvist, Tomasu Tampere Univ Technol, Finland4 aut
700	1	a Ovaska, Markusu Aalto Univ, Finland4 aut
700	1	a Koivisto, Juhau Aalto Univ, Finland4 aut
700	1	a Miksic, Amandineu Aalto Univ, Finland4 aut
700	1	a Engberg, Birgitta A.,d 1975-u Mittuniversitetet,Avdelningen för kemiteknik4 aut0 (Swepub:miun)birsve
700	1	a Salminen, Lauri I.u VTT, Finland4 aut
700	1	a Saarenrinne, Penttiu Tampere Univ Technol, Finland4 aut
700	1	a Alava, Mikkou Aalto Univ, Finland4 aut
710	2	a Tampere Univ Technol, Finlandb Aalto Univ, Finland4 org
773	0	t Holzforschungd : Walter de Gruyter GmbHg 71:6, s. 505-514q 71:6<505-514x 0018-3830x 1437-434X
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-30841
856	4 8	u https://doi.org/10.1515/hf-2016-0144

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