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Using the point method to estimate failure loads in 3D printed graphene-reinforced PLA notched plates

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.

Otras comunicaciones del congreso o articulos relacionados con autores/as de la Universidad de Cantabria

 Congreso: International Conference of Engineering Against Failure (7ª : 2023 : Isla Spetses, Grecia)

 Editorial: Institute of Physics

 Año de publicación: 2024

 Nº de páginas: 7

 Tipo de publicación: Comunicación a Congreso

 DOI: 10.1088/1742-6596/2692/1/012043

 ISSN: 1742-6588,1742-6596

 Proyecto español: PID2021-122324NB-I00

 Url de la publicación: https://doi.org/10.1088/1742-6596/2692/1/012043