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Advanced three-dime...
Advanced three-dimensional paper structures : Mechanical characterization and forming of sheets made from modified cellulose fibers
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- Linvill, Eric (författare)
- KTH,Hållfasthetslära (Inst.),VinnExcellens Centrum BiMaC Innovation
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- Larsson, Per A. (författare)
- KTH,Fiber- och polymerteknologi,VinnExcellens Centrum BiMaC Innovation
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- Östlund, Sören (författare)
- KTH,Hållfasthetslära (Inst.),VinnExcellens Centrum BiMaC Innovation
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KTH Hållfasthetslära (Inst) (creator_code:org_t)
- Elsevier, 2017
- 2017
- Engelska.
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Ingår i: Materials & design. - : Elsevier. - 0264-1275 .- 1873-4197. ; 128, s. 231-240
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Cellulose partially converted to dialcohol cellulose has been identified as a potential breakthrough material for the production of bio-based, complex, double-curved surfaces due to its extensive strain-at-break characteristics (reaching as great as 80% in tensile loading). Tensile testing of handsheets made from modified cellulose fibers was conducted from 50 to 90% relative humidity (RH) and from 23 to 150 °C. Strain-at-break of the handsheets ranged from 35 to 80% over this humidity and temperature range, which is significantly greater than typical cellulose-based materials. The combined effect of moisture and temperature was further investigated by dynamic mechanical thermal analysis, which was utilized to determine the glass-transition temperature of the handsheets as a function of relative humidity. Based on the tensile test results and verified by the three-dimensional (3-D) forming and simulation, a forming limit diagram (strain-based failure surface which describes and illustrates the formability of the material) for the handsheets was generated. This forming limit illustrates significant extent to which this bio-based material can be 3-D formed into advanced structures. Furthermore, temperature was identified as the best, quickest, and most controllable method of improving extensibility of this material during 3-D forming.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Nyckelord
- 3-D forming
- Dialcohol cellulose
- Explicit FEM
- Formability
- Forming limit diagram (FLD)
- Glass-transition temperature
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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