Non-stochastic lattice structures for novel filter applications fabricated via additive manufacturing

Hasib, Hazman and Rennie, Allan and Burns, Neil and Geekie, Louise (2015) Non-stochastic lattice structures for novel filter applications fabricated via additive manufacturing. Filtration, 15 (3). pp. 174-180. ISSN 1479-0602

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Abstract

Non-stochastic lattice structures are widely used in a variety of applications such as biomedical implants and heat exchangers. However, the utilisation of these structures for filtration applications is rather new. Additive manufacturing techniques such as selective laser melting allows lattice structures to be bespoke depending on the type of filter and its intended function. This study considers the flow characteristics and structural strength of a disc filter with a layer of repeated 1.8 mm lattice unit cell as the filter mesh. Computational fluid dynamics simulation is used to analyse the pressure and flow velocity across the filter, while finite element analysis is utilised to analyse the structural characteristics of the lattice mesh under fluid load. The results show a minimal decrease in pressure and small increases in velocity, with the mesh capable of withstanding higher loads. The ultimate failure load of the structure is also determined. These findings indicate that more layers of lattice structures could be used as filter mesh and the flexibility of AM allows the filter properties to be tailored as required for a given application.

Item Type:
Journal Article
Journal or Publication Title:
Filtration
Additional Information:
Date of Acceptance: Authors were not notified by the publisher
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2209
Subjects:
ID Code:
75796
Deposited By:
Deposited On:
21 Oct 2015 04:59
Refereed?:
Yes
Published?:
Published
Last Modified:
04 Jul 2020 02:53