A further step in the modelling of the mechanical behaviour of bagasse

Plaza, Floren (2010) A further step in the modelling of the mechanical behaviour of bagasse. In Bruce, Robin (Ed.) 32nd Annual Conference of the Australian Society of Sugar Cane Technologists 2010, ASSCT, Bundaberg, Australia, pp. 621-628.

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Abstract

A better understanding of the behaviour of prepared cane and bagasse during the crushing process is believed to be an essential prerequisite for further improvements to the crushing process. Improvements could be made, for example, in throughput, sugar extraction, and bagasse moisture. 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 to reduce final bagasse moisture. However an adequate mechanical model for bagasse is currently not available. Previous investigations have proven with certainty 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, the same commercial software do not contain an adequate mechanical model for bagasse. 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.

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ID Code: 39262
Item Type: Conference Paper
Refereed: Yes
Keywords: bagasse, milling, mechanical behaviour, critical state model, elasto-plastic
ISBN: 9781617388279
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
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Current > Institutes > Institute for Future Environments
Copyright Owner: Copyright 2010 Australian Society of Sugar Cane Technologists
Deposited On: 06 Aug 2014 01:46
Last Modified: 07 Aug 2014 19:48

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