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An investigation of the mechanical properties of metallic lattice structures fabricated using selective laser melting

Feng, Q., Tang, Q., Liu, Z., Liu, Ying and Setchi, Rossitza M. 2018. An investigation of the mechanical properties of metallic lattice structures fabricated using selective laser melting. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 232 (10) , pp. 1719-1730. 10.1177/0954405416668924

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Abstract

Metallic lattice structures manufactured using selective laser melting are widely used in fields such as aerospace and automobile industries in order to save material and reduce energy consumption. An essential element of metallic lattice structures design is determining their mechanical behaviors under loading conditions. Theoretical method based on beam theory has been proposed for evaluating the behaviors of the commonly used body-centered cubic lattice structures. However, it is difficult to predict theoretically the properties of the uniaxially reinforced lattice structures based on the body-centered cubic structures. Since the reinforced structures have superior strength to weight ratio and are deemed promising in lightweight-design applications, this article proposed a force-method-based theoretical method to calculate the mechanical properties of the body-centered cubic structure and its two types of uniaxially reinforced structures fabricated via selective laser melting. The finite element analysis and compression experiment study of selective laser melting samples made using Ti6Al4V powders demonstrated the validity of the proposed analytical method.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Publisher: SAGE Publications
ISSN: 0954-4054
Date of First Compliant Deposit: 19 October 2016
Date of Acceptance: 8 August 2016
Last Modified: 23 Oct 2018 21:51
URI: http://orca.cf.ac.uk/id/eprint/95461

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