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A Network Model Applied to Cellulose Fibre Materials

Heyden, Susanne LU (1996) In TVSM-3000
Abstract
A network mechanics model for analysis of materials made of dry-shaped cellulose fibres is proposed. In terms of the model, the network is composed of fibres of arbitrary distribution in length, curvature, cross-section. stiffness and strength. The fibres are arranged in a random structure according to an arbitrary orientation distribution. Where fibres meet there may be fibre-to-fibre interaction, modelled by a linear or non-linear spring coupling representing stick-slip performance. The connection is of arbitrary distribution in stiffness and strength.
The network geometry is periodic, any cell under observation being regarded as one of many identical cells that make up a global structure. A set of cyclic boundary and loading... (More)
A network mechanics model for analysis of materials made of dry-shaped cellulose fibres is proposed. In terms of the model, the network is composed of fibres of arbitrary distribution in length, curvature, cross-section. stiffness and strength. The fibres are arranged in a random structure according to an arbitrary orientation distribution. Where fibres meet there may be fibre-to-fibre interaction, modelled by a linear or non-linear spring coupling representing stick-slip performance. The connection is of arbitrary distribution in stiffness and strength.
The network geometry is periodic, any cell under observation being regarded as one of many identical cells that make up a global structure. A set of cyclic boundary and loading conditions facilities obtaining relevant results even in the case of small network cells.
A two-dimensional implementation of the model was carried out, and several examples of simulation results are provided. The results concern geometrical properties of the network, and the effects on network stiffness and fracture behavior due to variations of sample size, boundary conditions and the various micro-level parameters mentioned above.
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author
supervisor
organization
publishing date
type
Thesis
publication status
published
subject
keywords
Network mechanics, Fibre network, Cellulose fibres, Fracture, Stiffness, Computer simulation
in
TVSM-3000
issue
TVSM-3018
pages
155 pages
publisher
Division of Structural Mechanics, LTH
ISSN
0281-6679
language
English
LU publication?
yes
id
f395f7a3-ea47-4bb2-8a2a-361b75b37fe4
date added to LUP
2023-08-11 16:50:51
date last changed
2023-10-16 09:54:10
@misc{f395f7a3-ea47-4bb2-8a2a-361b75b37fe4,
  abstract     = {{A network mechanics model for analysis of materials made of dry-shaped cellulose fibres is proposed. In terms of the model, the network is composed of fibres of arbitrary distribution in length, curvature, cross-section. stiffness and strength. The fibres are arranged in a random structure according to an arbitrary orientation distribution. Where fibres meet there may be fibre-to-fibre interaction, modelled by a linear or non-linear spring coupling representing stick-slip performance. The connection is of arbitrary distribution in stiffness and strength.<br/>The network geometry is periodic, any cell under observation being regarded as one of many identical cells that make up a global structure. A set of cyclic boundary and loading conditions facilities obtaining relevant results even in the case of small network cells.<br/>A two-dimensional implementation of the model was carried out, and several examples of simulation results are provided. The results concern geometrical properties of the network, and the effects on network stiffness and fracture behavior due to variations of sample size, boundary conditions and the various micro-level parameters mentioned above.<br/>}},
  author       = {{Heyden, Susanne}},
  issn         = {{0281-6679}},
  keywords     = {{Network mechanics; Fibre network; Cellulose fibres; Fracture; Stiffness; Computer simulation}},
  language     = {{eng}},
  note         = {{Licentiate Thesis}},
  number       = {{TVSM-3018}},
  publisher    = {{Division of Structural Mechanics, LTH}},
  series       = {{TVSM-3000}},
  title        = {{A Network Model Applied to Cellulose Fibre Materials}},
  url          = {{https://lup.lub.lu.se/search/files/154607886/web3018.pdf}},
  year         = {{1996}},
}