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Systematic approach for the characterization of additive manufactured and injection molded short carbon fiber-reinforced polymers under tensile loading

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Published/Copyright: February 13, 2021
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Materials Testing
From the journal Materials Testing Volume 62 Issue 6

Abstract

Material extrusion-based additive manufacturing techniques such as fused deposition modeling or fused filament fabrication are developing from prototyping applications to serial components. The aim of this study is to properly characterize an additively manufactured polymer with the corresponding process-induced defects. To this effect, varied manufacturing orientations of fused filament fabrication were tested with a single-batch material manufactured by injection molding serving as a reference. Scans were carried out via micro-computed tomography to assess the void content and distribution with respect to quality. Local material performance was investigated via quasi-static and cyclic tests under tensile loading. The quasi-static tensile tests indicated a significant reduction of Young’s modulus, tensile strength, and strain at fracture for the additively manufactured polymer. The mechanical investigations with cyclic loading intensified this trend of clear reduced mechanical properties due to process-induced defects. The quality assessment revealed void volume contents of the additively manufactured polymer of up to 6.5 % and a void distribution dependent on manufacturing orientation. The results of this study are valuable as design guidelines for highly stressed components and serve as a basis for further characterizations of process-induced defects.

Keywords: Material extrusion; injection molding; mechanical characterization; computed tomography; additive manufacturing
Published Online: 2021-02-13
Published in Print: 2020-06-01

© 2020 by Walter de Gruyter Berlin/Boston

Articles in the same Issue

  1. CONTENTS
  2. Materials Testing
  3. FACHBEITRÄGE
  4. Systematic approach for the characterization of additive manufactured and injection molded short carbon fiber-reinforced polymers under tensile loading
  5. XRD investigation of the Cu and Mn effects on the oxide scale of hot rolled AISI 304L stainless steel after annealing and shot-blasting
  6. Strain-rate dependent material properties of selective laser melted AlSi10Mg and AlSi3.5Mg2.5
  7. BOOK
  8. FACHBEITRÄGE
  9. Investigation of the influence of heat treatment of cold work steel on coating adhesion under mechanical load between substrate and thin titanium coatings deposited by PVD
  10. Effective hydrogen diffusivities of AISI 304 stainless steel with Ni or Au coating
  11. Mechanical properties of dissimilar Ti-Al resistance spot welds
  12. A physically based material model for the simulation of friction stir welding
  13. Mechanical behavior and failure mechanism of three-dimensional braided composites at different temperatures
  14. Thermoforming behavior of 3D-printed PLA sheets
  15. Experimental investigation of fatigue failure in an ASTM A401 compression spring of a passenger car
  16. Optimum design of automobile components using lattice structures for additive manufacturing
  17. Seagull optimization algorithm for solving real-world design optimization problems
  18. Wear and microstructural properties of coatings on Weldox 700 steel
  19. Kinetic characterization of boride layers formed on AISI 316 stainless steel
  20. BEZUGSQUELLEN
  21. IMPRESSUM
https://doi.org/10.3139/120.111517
Keywords for this article
Material extrusion; injection molding; mechanical characterization; computed tomography; additive manufacturing

Articles in the same Issue

  1. CONTENTS
  2. Materials Testing
  3. FACHBEITRÄGE
  4. Systematic approach for the characterization of additive manufactured and injection molded short carbon fiber-reinforced polymers under tensile loading
  5. XRD investigation of the Cu and Mn effects on the oxide scale of hot rolled AISI 304L stainless steel after annealing and shot-blasting
  6. Strain-rate dependent material properties of selective laser melted AlSi10Mg and AlSi3.5Mg2.5
  7. BOOK
  8. FACHBEITRÄGE
  9. Investigation of the influence of heat treatment of cold work steel on coating adhesion under mechanical load between substrate and thin titanium coatings deposited by PVD
  10. Effective hydrogen diffusivities of AISI 304 stainless steel with Ni or Au coating
  11. Mechanical properties of dissimilar Ti-Al resistance spot welds
  12. A physically based material model for the simulation of friction stir welding
  13. Mechanical behavior and failure mechanism of three-dimensional braided composites at different temperatures
  14. Thermoforming behavior of 3D-printed PLA sheets
  15. Experimental investigation of fatigue failure in an ASTM A401 compression spring of a passenger car
  16. Optimum design of automobile components using lattice structures for additive manufacturing
  17. Seagull optimization algorithm for solving real-world design optimization problems
  18. Wear and microstructural properties of coatings on Weldox 700 steel
  19. Kinetic characterization of boride layers formed on AISI 316 stainless steel
  20. BEZUGSQUELLEN
  21. IMPRESSUM
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