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Experimental bending fatigue data of additive-manufactured PLA biomaterial fabricated by different 3D printing parameters

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Abstract

Additive manufacturing (AM) is used in several industries, such as automotive, aerospace, and medical sciences. One of the most common devices used in additive manufacturing is fused deposition modeling (FDM) 3D printers. This fabrication method has different inputs that affect the quality of the parts. In this research, the bending fatigue properties of polylactic acid (PLA) biomaterial made with a 3D printer are investigated. To demonstrate the influence of printing parameters on fatigue lifetime, standard specimens with nozzle diameters of 0.2–0.6 mm, extruder temperature of 180–240 °C, and print speed of 5–15 mm/s were printed. After performing fully reversed bending fatigue tests, it was found that printed specimens at 180 °C have the best fatigue lifetime in most cases. Accordingly, the fatigue behavior improved by reducing the nozzle diameter. Printing at lower temperatures also improved the fatigue lifetime. The printing speed affected the slope of the stress–lifetime (S–N) diagram, known as the fatigue strength exponent. Valuable experimental fatigue raw data (not analyzed) were presented for additively manufactured PLA biomaterials fabricated by different 3D printing parameters.

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Data availability

The data that support the findings of this article are available at Azadi, Mohammad; Dadashi, Ali (2021), “HCF testing raw data on 3D-printed PLA polymers”, Mendeley Data, V1, https://doi.org/10.17632/gyxsn7wg6c.1. Moreover, the preprint version of this manuscript could be found at https://www.preprints.org/manuscript/202201.0252/v1 (Dadashi, A.; Azadi, M. Experimental Bending Fatigue Data of Additive-Manufactured PLA Biomaterial Fabricated by Different 3D Printing Parameters, Preprints 2022, 2,022,010,252, https://doi.org/10.20944/preprints202201.0252.v1).

Abbreviations

3D:

Three-dimensional

ABS:

Acrylonitrile butadiene styrene

AM:

Additive manufacturing

AMB:

Advanced Materials Behavior (Research Laboratory)

BJ:

Binder jetting

CAD:

Computer-aided design

FDM:

Fused deposition modeling

PLA:

Polylactic acid

S–N:

Stress–lifetime

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Funding

The authors would like to acknowledge the financial support of the Ministry of Science, Research and Technology for this project under grant number of 16-99-01-000194.

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Authors and Affiliations

  1. Research Laboratory of Advanced Materials Behavior (AMB), Faculty of Mechanical Engineering, Semnan University, Semnan, Iran

    Ali Dadashi & Mohammad Azadi

Authors
  1. Ali Dadashi
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  2. Mohammad Azadi
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Contributions

MA: conceptualization/methodology/validation/investigation/resources/writing—review and editing/visualization/supervision/project administration. AD: formal analysis/investigation/data curation/writing—original draft.

Corresponding author

Correspondence to Mohammad Azadi.

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For this research, there is no conflict of interest for all authors. For any other conflict of interest, check the “Data availability” part.

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Dadashi, A., Azadi, M. Experimental bending fatigue data of additive-manufactured PLA biomaterial fabricated by different 3D printing parameters. Prog Addit Manuf 8, 255–263 (2023). https://doi.org/10.1007/s40964-022-00327-1

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  • DOI: https://doi.org/10.1007/s40964-022-00327-1

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