Non-linear Contact Analysis of Self-Supporting Lattice

Adedeji Aremu, Ian Ashcroft, Ricky WIldman, Richard Hague

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Using additive manufacturing (AM) techniques for end user parts is quite attractive for performance enhancement and product customisation since designs are less constrained via this technique. The extent to which this could influence design is still to be determined. An interesting way to exploit AM capabilities for mechanical components is to embed lattice structures in such components. However, constraints inherent on some AM machines might limit the range of suitable lattices. For selective laser melting (SLM), supports are needed for features inclined at an angle lower than 45∘. This does imply that lattices without such features are better suited for SLM. Despite this constraint, a number of lattices can be made via the SLM technique. In this paper, we determine the structural properties of four of these self-supporting lattices via non-linear contact analysis. A minimal surface lattice show superior properties to those of the other three strut based lattices.
Original languageEnglish
Title of host publicationMechanics of Composite and Multi-functional Materials, Volume 7
Subtitle of host publicationProceedings of the 2016 Annual Conference on Experimental and Applied Mechanics
EditorsW. Carter Ralph, Raman Singh, Gyaneshwar Tandon, Piyush R. Thakre, Pablo Zavattieri, Yong Zhu
PublisherSpringer, Cham
Pages55-62
Number of pages8
Volume7
ISBN (Electronic)978-3-319-41766-0
ISBN (Print)978-3-319-41765-3
DOIs
Publication statusPublished - 2017
Externally publishedYes

Publication series

Name Conference Proceedings of the Society for Experimental Mechanics Series

Keywords

  • Additive manufacturing
  • Lattice
  • Contact
  • Non-linear
  • Finite element

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