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Abstract: This work estimates failure loads in Fused Filament Fabrication (FFF) printed graphene-reinforced PLA (polylactic acid) plates containing different types of stress risers. With this aim, firstly, several notched plates are tested and conducted to fracture. Then, linear elastic Finite Element (FE) analyses are completed to define the corresponding stress profiles and, finally, the Point Method (PM) is applied to establish the failure criterion. This approach asserts that fracture conditions are achieved when the stress level equates the inherent strength (sigma0) at a distance from the notch tip equal to L/2, so both parameters (related to each other through the material fracture toughness, Kmat) have been defined beforehand. The estimations of fracture loads obtained following this approach agree with the experimental results. Thus, the present work demonstrates the accuracy of the PM to estimate failure loads in this 3D printed material.
Congress: International Conference of Engineering Against Failure (7ª : 2023 : Isla Spetses, Grecia)
Publisher: Institute of Physics
Year of publication: 2024
No. of pages: 7
Publication type: Conference object
DOI: 10.1088/1742-6596/2692/1/012043
ISSN: 1742-6588,1742-6596
Spanish project: PID2021-122324NB-I00
Publication Url: https://doi.org/10.1088/1742-6596/2692/1/012043
Consult in UCrea Read publication
SERGIO CICERO GONZALEZ
SERGIO ARRIETA GÓMEZ
MARCOS SÁNCHEZ MATÍAS
LAURA CASTAÑON JANO
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