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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/5224

    Título
    Tensile properties and failure behavior of chopped and continuous carbon fiber composites produced by additive manufacturing
    Autor
    Naranjo Lozada, Juan
    Ahuett Garza, Horacio
    Orta Castañón, Pedro
    Verbeeten, Wilco M.H.Autoridad UBU Orcid
    Sáiz González, Daniel
    Publicado en
    Additive Manufacturing. 2019, V. 26, p. 227-241
    Editorial
    Elsevier
    Fecha de publicación
    2019-03
    ISSN
    2214-8604
    DOI
    10.1016/j.addma.2018.12.020
    Resumo
    The use of additive manufacturing (AM) is rapidly expanding in many industries mostly because of the flexibility to manufacture complex geometries. Recently, a family of technologies that produce fiber reinforced components has been introduced, widening the options available to designers. AM fiber reinforced composites are characterized by the fact that process related parameters such as the amount of reinforcement fiber, or printing architecture, significantly affect the tensile properties of final parts. To find optimal structures using new AM technologies, guidelines for the design of 3D printed composite parts are needed. This paper presents an evaluation of the effects that different geometric parameters have on the tensile properties of 3D printed composites manufactured by fused filament fabrication (FFF) out of continuous and chopped carbon fiber reinforcement. Parameters such as infill density and infill patterns of chopped composite material, as well as fiber volume fraction and printing architecture of continuous fiber reinforcement (CFR) composites are varied. The effect of the location of the initial deposit point of reinforcement fibers on the tensile properties of the test specimens is studied. Also, the effect that the fiber deposition pattern has on tensile performance is quantified. Considering the geometric parameters that were studied, a variation of the Rule of Mixtures (ROM) that provides a way to estimate the elastic modulus of a 3D printed composite is proposed. Findings may be used by designers to define the best construction parameters for 3D printed composite parts.
    Palabras clave
    Mechanical properties
    Additive manufacturing
    Continuous fiber composite
    Chopped composites carbon fiber
    Rule of mixtures
    Materia
    Resistencia de materiales
    Strength of materials
    URI
    http://hdl.handle.net/10259/5224
    Versión del editor
    https://doi.org/10.1016/j.addma.2018.12.020
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