The Synergic Effects of FDM 3D Printing Parameters on Mechanical Behaviors of Bronze Poly Lactic Acid Composites

Mahmoud Moradi, Mojtaba Karami Moghadam, Mahmoud Shamsborhan, Mahdi Bodaghi

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)
23 Downloads (Pure)


In this paper, the influence of layer thickness (LT), infill percentage (IP), and extruder temperature (ET) on the maximum failure load, thickness, and build time of bronze polylactic acid (Br-PLA) composites 3D printed by the fused deposition modeling (FDM) was investigated via an optimization method. PLA is a thermoplastic aliphatic polyester obtained from renewable sources, such as fermented plant starch, especially made by corn starch. The design of experiment (DOE) approach was used for optimization parameters, and 3D printings were optimized according to the applied statistical analyses to reach the best features. The maximum value of failure load and minimum value of the build time were considered as optimization criteria. Analysis of variance results identified the layer thickness as the main controlled variable for all responses. Optimum solutions were examined by experimental preparation to assess the efficiency of the optimization method. There was a superb compromise among experimental outcomes and predictions of the response surface method, confirming the reliability of predictive models. The optimum setting for fulfilling the first criterion could result in a sample with more than 1021 N maximum failure load. Finally, a comparison of maximum failure from PLA with Br-PLA was studied.
Original languageEnglish
Article number17
Number of pages16
JournalJournal of Composites Science
Issue number1
Publication statusPublished - 3 Feb 2020
Externally publishedYes

Bibliographical note

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution
(CC BY) license (


  • 3D printing
  • Bronze polylactic acid composite
  • FDM method
  • Response surface method

ASJC Scopus subject areas

  • Ceramics and Composites
  • Engineering (miscellaneous)


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