Composite 3D printing and mechanical characterization using PEEK

2020 ◽  
Vol 2020.28 (0) ◽  
pp. 111
Author(s):  
Daisuke KUBA ◽  
Ryosuke MATSUZAKI ◽  
Shono OCHI
Keyword(s):  
3D Printing ◽  
Mechanical Characterization

scholarly journals New Materials for 3D-Printing Based on Polycaprolactone with Gum Rosin and Beeswax as Additives

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 334 ◽  
Author(s):  
Cristina Pavon ◽  
Miguel Aldas ◽  
Juan López-Martínez ◽  
Santiago Ferrándiz
Keyword(s):  
Tensile Strength ◽  
3D Printing ◽  
Mechanical Characterization ◽  
Three Dimensional ◽  
New Materials ◽  
Elongation At Break ◽  
Printing Process ◽  
Gum Rosin ◽  
The Matrix ◽  
Natural Additives

In this work, different materials for three-dimensional (3D)-printing were studied, which based on polycaprolactone with two natural additives, gum rosin, and beeswax. During the 3D-printing process, the bed and extrusion temperatures of each formulation were established. After, the obtained materials were characterized by mechanical, thermal, and structural properties. The results showed that the formulation with containing polycaprolactone with a mixture of gum rosin and beeswax as additive behaved better during the 3D-printing process. Moreover, the miscibility and compatibility between the additives and the matrix were concluded through the thermal assessment. The mechanical characterization established that the addition of the mixture of gum rosin and beeswax provides greater tensile strength than those additives separately, facilitating 3D-printing. In contrast, the addition of beeswax increased the ductility of the material, which makes the 3D-printing processing difficult. Despite the fact that both natural additives had a plasticizing effect, the formulations containing gum rosin showed greater elongation at break. Finally, Fourier-Transform Infrared Spectroscopy assessment deduced that polycaprolactone interacts with the functional groups of the additives.

scholarly journals Analysis of Part Built Orientation of the Polyjet 3 D Printed Polymer Component

2019 ◽  
Vol 8 (9) ◽  
pp. 3355-3358
Keyword(s):  
3D Printing ◽  
Mechanical Characterization ◽  
Experimental Result ◽  
Compressive Test ◽  
Horizontal Orientation ◽  
Polymer Component ◽  
Fea Analysis

The objective of this study was to determine appropriate orientation for the scaffold by using 3D printing. This has been done by fabrication in vertical and horizontal orientation and then the specimen were subjected to tensile and compressive test for its mechanical characterization of a specimen, a suitable orientation was found to be horizontal. Finally, FEA analysis was also carried out to match with experimental result

scholarly journals Recipe Development and Mechanical Characterization of Carbon Fibre Reinforced Recycled Polypropylene 3D Printing Filament

2021 ◽  
Vol 11 (03) ◽  
pp. 47-61
Author(s):  
Mwambe Polline ◽  
James M. Mutua ◽  
Thomas Ochuku Mbuya ◽  
Kyekyere Ernest
Keyword(s):  
3D Printing ◽  
Carbon Fibre ◽  
Mechanical Characterization ◽  
Recycled Polypropylene

scholarly journals Finite Element Modeling of 3D Printed Parts With Defects

2021 ◽  
Author(s):  
Geethanjali Chandramouli
Keyword(s):  
Finite Element ◽  
3D Printing ◽  
Failure Analysis ◽  
Mechanical Characterization ◽  
Failure Strain ◽  
Progressive Failure ◽  
Experimental Result ◽  
Test Results ◽  
Progressive Failure Analysis ◽  
3D Printed

To manufacture a component, one first needs to assess its structural design performance, damage tolerance, and service experience, and validate them with pertinent test results. Finite Element (FE) modeling can predict mechanical performance, save time and cost by limiting required structural testing. 3D printing is a layer-by-layer manufacturing technology that has been widely used for rapid prototyping applications in product design and development. Recently, there has been a move towards manufacturing functional products using 3D printing, which requires materials mechanical characterization and simulation. Mechanical characterization testing results are available for 3D printed ASTM D638 tensile coupons without defects, i.e. tension along (0°) and transverse (90°) to the printing direction, and a quasiisotropic stacking sequence. In addition, tensile test results of a quasi-isotropic coupon with intentional defects are also available. In this project, FE models of the coupons are created to obtain their tensile strength, modulus, and failure strain. First ply, last ply failure and stiffness reduction iterative approach have been implemented on a 2D shell model. MSC Software is used to simulate the analyses due to its ease of use for composites using 2d shell elements. This simulation is then extended to predict strength and stiffness of a quasi-isotropic coupon with defects. The analysis is also extended to implement progressive failure analysis to predict the ultimate strength of the laminate. For coupons without defects, FE models estimated test results of stiffness and strength within 1% error, while the error for estimating failure strain is higher. For coupons with defects, the error in calculating stiffness and strength is below 8%, while it is higher for failure strain. Although the stress-strain curve from FE simulation looks similar to experimental result, it is found that progressive failure analysis is necessary for obtaining failure strain values with acceptable error percentage.

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