Comprehensive studies on strength of 3D-printed aluminum micro lattice structures

Fuzuli Agri Akçay, Dazhong Wu, Yuanli Bai*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


Lattice structure is a type of cellular structure and is used in various engineering applications due to its high strength to weight ratio and excellent energy absorption capacity. A traditional way to examine the response of lattice structures subjected to external loading is to perform experimental research and/or to employ numerical investigation. In this study, however, an analytical model is developed utilizing limit analysis to predict the strength of micro lattice structures. Analytical results are compared to the experimental results of additively manufactured (3D-printed) AlSi10Mg aluminum lattice structures by selective laser melting (SLM). Moreover, 2D and 3D finite element simulations are conducted in order to validate the experimental results as well as to investigate the accuracy of the analytical model. Analytical results are found to be in a reasonable agreement with the experimental results. Furthermore, it is found that 2D numerical simulations are not very consistent with the experimental results; therefore, this study suggests use of 3D finite element modeling in order to fully capture the effect of shear in short beams/struts.

Original languageEnglish
Pages (from-to)1399-1406
Number of pages8
JournalProcedia Structural Integrity
Publication statusPublished - 2020
Event1st Virtual European Conference on Fracture, VECF 2020 - Virtual, Online
Duration: 29 Jun 20201 Jul 2020

Bibliographical note

Publisher Copyright:
© 2020 The Authors. Published by Elsevier B.V.


  • Additive manufacturing
  • Aluminum alloy
  • Micro lattice structures
  • Strength


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