Isotropic and anisotropic elasticity and yielding of 3D printed material

Zou, Rui; Xia, Yang; Liu, Shiyi; Hu, Ping; Hou, Wei; Hu, Q.; Shan, Chunlai

doi:10.1016/j.compositesb.2016.06.009

Cited by 264 publications

(144 citation statements)

References 22 publications

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“…Particularly, the high surface roughness has limited its application in many fields . In order to solve this problem, many scholars have studied to reduce the surface roughness of the parts by optimizing FDM process parameters . Sun et al investigated the effects of the envelope temperature and variations in the convection coefficient on the quality of bonding of adjacent filaments during FDM.…”

Section: Introductionmentioning

confidence: 99%

Laser polishing of Cu/PLA composite parts fabricated by fused deposition modeling: Analysis of surface finish and mechanical properties

et al. 2019

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Fused deposition modeling (FDM) technology decreases production time and cost in engineering industry, but with typical low surface quality. In this study, laser polishing was employed to improve surface quality of copper fiber/polylactide acid (Cu/PLA) composite parts fabricated by FDM. Surface roughness, surface morphology, dynamic mechanical analysis (DMA), and tensile properties were studied. The results showed that after laser polishing, the surface roughness was reduced by more than 91% (from 10.52 to 0.87 μm Sa) at the optimized parameters (the laser power of 5 W and the laser beam diameter of 200 μm). Laser polishing can effectively remove surface defects formed during FDM. DMA showed that the storage modulus, loss modulus, and glass transition temperature of Cu/PLA composites were significantly improved, because the Cu fibers and PLA matrix formed a strong interfacial adhesion after treatment. Moreover, the tensile strength and Young's modulus of the Cu/PLA composites sample also improved by laser polishing. The fracture morphologies were observed, and the possible strengthening mechanism was also discussed.

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Section: Introductionmentioning

confidence: 99%

Laser polishing of Cu/PLA composite parts fabricated by fused deposition modeling: Analysis of surface finish and mechanical properties

et al. 2019

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“…To determine if 3D printed materials can be used for functional components, the mechanical properties need to be determined [2][3][4] and is also important to predict not only the strength, but also the stiffness and how they relate to process parameters.…”

Section: Introductionmentioning

confidence: 99%

Effects of Raster Orientation, Infill Rate and Infill Pattern on the Mechanical Properties of 3D Printed Materials

Dudescu

Racz

2017

ACTA Universitatis Cibiniensis

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“…3D printing techniques are widely used to make various composite materials. Because the 3D printed model is built layer by layer during a fused deposition modeling process, it is natural to consider printed materials as anisotropic materials …”

Section: Introductionmentioning

confidence: 99%

Boundary element analysis of transversely isotropic bi‐material halfspaces with inclined planes of isotropy and interfaces

Xiao

Yue

Xiao

2019

Num Anal Meth Geomechanics

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Summary In this paper, a single‐region boundary element method (BEM) is presented for the analysis of transversely isotropic bi‐material halfspaces with arbitrarily inclined planes of isotropy and material interfaces. The proposed BEM uses the fundamental solution of a transversely isotropic bi‐material fullspace and five boundary element techniques. Infinite boundary elements are introduced to consider the far‐fields of a transversely isotropic bi‐material halfspace. The effective integration methods are proposed for dealing with various integrals in the discretized boundary integral equation. The stresses at internal points are obtained using the coordinate transformation of kernel functions, and the stresses on the boundary surface are calculated using an improved traction recovered method. Numerical verifications of displacements and stresses for a benchmark problem are conducted, and excellent agreement with previously published results is obtained. Numerical examples are presented to illustrate the influence of non‐horizontal or horizontal planes of isotropy in bi‐material halfspaces on the displacements and stresses induced by the tractions on the horizontal boundary surface. Results reveal that the elastic fields vary clearly with the dip angle of the isotropic plane and the stresses across the bi‐material interface are closely related to the ratios of the elastic parameters of the bi‐material.

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Isotropic and anisotropic elasticity and yielding of 3D printed material

Cited by 264 publications

References 22 publications

Laser polishing of Cu/PLA composite parts fabricated by fused deposition modeling: Analysis of surface finish and mechanical properties

Laser polishing of Cu/PLA composite parts fabricated by fused deposition modeling: Analysis of surface finish and mechanical properties

Effects of Raster Orientation, Infill Rate and Infill Pattern on the Mechanical Properties of 3D Printed Materials

Boundary element analysis of transversely isotropic bi‐material halfspaces with inclined planes of isotropy and interfaces

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