Additive manufacturing of Kevlar reinforced epoxy composites

Nashat Nawafleh, Jordan Chabot, Mutabe Aljaghtam, Cagri Oztan, Edward Dauer, Recep M. Gorguluarslan, Teyfik Demir, Emrah Celik

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Additive manufacturing is defined as layer-by-layer deposition of materials on a surface to fabricate 3D objects with reduction in waste, unlike subtractive manufacturing processes. Short, flexible Kevlar fibers have been used in numerous studies to alter mechanical performance of structural components but never investigated within printed thermoset composites. This study investigates the effects of adding short Kevlar fibers on mechanical performance of epoxy thermoset composites and demonstrates that the addition of Kevlar by 5% in weight significantly improves flexure strength, flexural modulus, and failure strain by approximately 49%, 19%, and 38%, respectively. Hierarchical microstructures were imaged using scanning electron microscopy to observe the artefacts such as porosity, infill and material interdiffusion, which are inherent drawbacks of the 3D printing process.

Original languageEnglish (US)
Title of host publicationAdvanced Manufacturing
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791859377
DOIs
StatePublished - Jan 1 2019
EventASME 2019 International Mechanical Engineering Congress and Exposition, IMECE 2019 - Salt Lake City, United States
Duration: Nov 11 2019Nov 14 2019

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume2A-2019

Conference

ConferenceASME 2019 International Mechanical Engineering Congress and Exposition, IMECE 2019
CountryUnited States
CitySalt Lake City
Period11/11/1911/14/19

Keywords

  • Kevlar composites
  • Thermoset 3D printing

ASJC Scopus subject areas

  • Mechanical Engineering

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    Nawafleh, N., Chabot, J., Aljaghtam, M., Oztan, C., Dauer, E., Gorguluarslan, R. M., Demir, T., & Celik, E. (2019). Additive manufacturing of Kevlar reinforced epoxy composites. In Advanced Manufacturing (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 2A-2019). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2019-12215