Journal ArticleDOI
Additive manufacturing of PLA structures using fused deposition modelling: Effect of process parameters on mechanical properties and their optimal selection
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TLDR
In this article, the effect of build orientation, layer thickness and feed rate on the mechanical performance of PLA samples manufactured with a low-cost 3D printer is investigated, where tensile and three-point bending tests are carried out to determine the mechanical response of the printed specimens.About:
This article is published in Materials & Design.The article was published on 2017-06-15. It has received 877 citations till now. The article focuses on the topics: Ductility.read more
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Polymers for 3D Printing and Customized Additive Manufacturing
TL;DR: Polymers are by far the most utilized class of materials for AM and their design, additives, and processing parameters as they relate to enhancing build speed and improving accuracy, functionality, surface finish, stability, mechanical properties, and porosity are addressed.
Journal ArticleDOI
FDM process parameters influence over the mechanical properties of polymer specimens: A review
TL;DR: In this paper, the most significant process parameters considered as influencing FDM specimens' tensile, compression, flexural or impact strengths are discussed considering the results presented in the literature, and a necessary distinction between the mechanical properties of material and testing specimens and the mechanical behavior of a FDM end part is also made.
Journal ArticleDOI
Mechanical Characterizations of 3D-printed PLLA/Steel Particle Composites.
TL;DR: The results showed that the interphase layer provided a smooth transition of elastic modulus from steel particles to the polymeric matrix, and a 10% volume fraction of steel particles could enhance the elasticModulus of PLLA polymer by 31%.
Journal ArticleDOI
FDM-Based 3D Printing of Polymer and Associated Composite: A Review on Mechanical Properties, Defects and Treatments.
TL;DR: The most common defects on printed parts, in particular the void formation, surface roughness and poor bonding between fibre and matrix, are explored and an inclusive discussion on the effectiveness of chemical, laser, heat and ultrasound treatments to minimize these drawbacks is provided.
Journal ArticleDOI
Characterization of 3D printed long fibre reinforced composites
TL;DR: In this article, the additive layer manufacturing (ALM) process is used in the present investigation to manufacture long fibre reinforced composite parts using the MarkOne® 3D-printer, and the results showed that the obtained mechanical properties for ALM composites are not yet comparable to those obtained by traditional methods (pre-pregs).
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Journal ArticleDOI
Damage monitoring and analysis of composite laminates with an open hole and adhesively bonded repairs using digital image correlation
TL;DR: In this article, two-dimensional and three-dimensional (3D) Digital Image Correlation (DIC) techniques were employed to obtain full-field surface strain measurements in carbon-fibre/epoxy M21/T700 composite plates with different stacking sequences in the presence of an open circular hole.
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Analysis of adhesively bonded repairs in composites: Damage detection and prognosis
M.A. Caminero,S. Pavlopoulou,M. Lopez-Pedrosa,B.G. Nicolaisson,Christophe Pinna,Constantinos Soutis +5 more
TL;DR: In this paper, the performance of both bonded repair techniques applied to carbon-fibre reinforced plastic (CFRP) composites was assessed under uniaxial tensile loading.
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Evaluation of dimensional accuracy and material properties of the MakerBot 3D desktop printer
TL;DR: In this article, a design of experiments (DOE) test protocol was applied to determine the effect of the following variables on the material properties of 3D printed part: layer height, per cent infill and print orientation using a MakerBot Replicator 2 desktop 3D printer.
Journal ArticleDOI
Design of Fused-Deposition ABS Components for Stiffness and Strength
TL;DR: In this paper, a mathematical model of the structural system is linked to an approximate minimization algorithm to find the settings of select manufacturing parameters, which optimize the mechanical performance of the component.
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Enhancing the Structural Performance of Additively Manufactured Objects Through Build Orientation Optimization
TL;DR: A geometry preserving build orientation optimization method as well as data-driven shape optimization approaches to structural design are presented, which greatly enhance the value of AM technology by taking advantage of the design space enabled by it for a broad class of problems involving complex in-use loads.