Modelling of the mechanical behaviour of heavily over-consolidated bagasse

Plaza, Floren (2012) Modelling of the mechanical behaviour of heavily over-consolidated bagasse. In Plaza, Floren (Ed.) Proceedings of the 34th Annual Conference of the Australian Society of Sugar Cane Technologists 2012 (ASSCT 2012), ASSCT, Palm Cove, Australia, pp. 319-323.

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A better understanding of the behaviour of prepared cane and bagasse, and the ability to model the mechanical behaviour of bagasse as it is squeezed in a milling unit to extract juice, would help identify how to improve the current process, for example to reduce final bagasse moisture. Previous investigations have proven that juice flow through bagasse obeys Darcy’s permeability law, that the grip of the rough surface of the grooves on the bagasse can be represented by the Mohr-Coulomb failure criterion for soils, and that the internal mechanical behaviour of the bagasse is critical state behaviour similar to that for sand and clay. Current Finite Element Models (FEM) available in commercial software have adequate permeability models. However, no commercially available software seems to contain an adequate mechanical model for bagasse. The same software contains a few material models for soil and other materials, while the coding of hundreds of developed models for soil and other materials remains confidential at universities and government research centres. Progress has been made in the last ten years towards implementing a mechanical model for bagasse in finite element software code. This paper builds on that progress and carries out a further step towards obtaining an adequate material model. The fifth and final loading condition outlined previously, shearing of heavily over-consolidated bagasse, is outlined.

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ID Code: 74760
Item Type: Conference Paper
Refereed: Yes
Keywords: mechanical behaviour, over-consolidated bagasse, elasto-plastic models, critical state, milling
ISBN: 9781622764051
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > OTHER ENGINEERING (099900) > Engineering not elsewhere classified (099999)
Divisions: Current > Research Centres > Centre for Tropical Crops and Biocommodities
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 Please consult the author
Deposited On: 06 Aug 2014 02:59
Last Modified: 07 Aug 2014 11:44

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