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Elastic strain at s...
Elastic strain at semi-isostatic compression of Scots pine (Pinus sylvestris)
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- Blomberg, Jonas (författare)
- Högskolan Dalarna,Luleå tekniska universitet,Materialteknik
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(creator_code:org_t)
- Springer Science and Business Media LLC, 2005
- 2005
- Svenska.
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Ingår i: Journal of Wood Science. - : Springer Science and Business Media LLC. - 1435-0211 .- 1611-4663. ; 51:4, s. 401-404
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Quarter-sawn and plain-sawn specimens of Scots pine were semi-isostatically compressed at 5, 15, 50, and 140MPa in a Quintus press. Elastic strain was measured using a telescope device that was pushed together when wood was compressed and remained in this position at release of pressure. Delayed elastic and plastic strains were assessed through repeated callipering during 5 years after densification. At 140MPa, wood reached an almost compact structure (ρ ≈ 1450kg/m3) but as a result of elastic springback the density decreased to just below 1000kg/m3. At 140MPa, the elastic and delayed elastic strains were 14.6% and 1.8%, respectively, in quarter-sawn specimens, and were 13.1% and 0.8%, respectively, in plain-sawn specimens. The higher elastic strains in quarter-sawn specimens can be attributed to elastic springback in the tangentially deformed latewood bands
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Annan maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Other Mechanical Engineering (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries (hsv//eng)
Nyckelord
- Träteknik
- Wood Technology
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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