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Effect of Raster Orientation on Fracture Toughness Properties of 3D Printed ABS Materials and Structures

[+] Author Affiliations
Amit Khatri, Ashfaq Adnan

University of Texas at Arlington, Arlington, TX

Paper No. IMECE2016-67801, pp. V009T12A064; 7 pages
doi:10.1115/IMECE2016-67801
From:
  • ASME 2016 International Mechanical Engineering Congress and Exposition
  • Volume 9: Mechanics of Solids, Structures and Fluids; NDE, Diagnosis, and Prognosis
  • Phoenix, Arizona, USA, November 11–17, 2016
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5063-3
  • Copyright © 2016 by ASME

abstract

Additive manufacturing is a rapidly growing cutting edge technology. Number of experimental studies have shown that strength of product manufactured by additive Fused Deposition Method (FDM) is influenced by different processing parameters involved during manufacturing. This research paper presents experimental and theoretical investigation of fracture toughness of ABS material fabricated with variation in some of process parameters such as Axis Orientations, Raster Orientation, Infill Percentage, Layer Height and Number of Shells. Experiment was designed to manufacture number of cracked specimens with variation in process parameters, measure their tensile strengths for fracture toughness and compare stress intensity factor (SIF) for all of the specimens. This study helps to understand, how different raster orientations affect the fracture toughness of 3D printed structures and also tells us under which process parameters additive manufactured cracked structures provide better strength.

Copyright © 2016 by ASME

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