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A Micromechanical M...
A Micromechanical Model of the Deterioration of a Wood Fibre
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- Berg, Jan-Erik (författare)
- Mittuniversitetet,Institutionen för naturvetenskap (-2008),Ved- och fibermekanik
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- Gradin, Per A. (författare)
- Mittuniversitetet,Institutionen för teknik, fysik och matematik (-2008),FSCN – Fibre Science and Communication Network
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(creator_code:org_t)
- 1999
- 1999
- Engelska.
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Ingår i: Journal of Pulp and Paper Science. - 0826-6220. ; 25:2, s. 66-71
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- A simple analytical model is presented in this paper for the prediction of the stiffness degradation and the damage state in a wood fibre, loaded in uniaxial tension or shear. The model is based on an assumed displacement field together with the minimum total potential energy theorem. For the damage development, an energy criterion is employed. The model is applied to a specific example and the relevant stiffness coefficients are calculated as a function of the damage state. The damage development as a function of the applied loads is also given. The results from a specific example considered indicate that a tensile load affects the stiffness degradation to a larger extent than does a shear load.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
Nyckelord
- Energy consumption
- Fibre structure
- Fracture
- Mathematical analysis
- Moisture content
- Picea abies
- Refining
- Stiffness degradation
- Strains
- Temperature
- Thermomechanical pulping
- Engineering mechanics
- Teknisk mekanik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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