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Highly stretchable 3d-printed composite structures

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. Aerospace
  2. National Research Council of Canada. Security and Disruptive Technologies
FormatText, Article
ConferenceTwenty-Second International Conference on Composite Materials (ICCM22), Aug. 11-16, 2019, Melbourne, Australia
Physical description7 p.
Subjectlarge deformation; 3D-printed composites; architectural materials; homogenization
Abstract
In this study, the large deformation behaviour of 3D-printed structures with representative arrowhead shape topology is studied and compared with the corresponding responses of conventional hexagonal structures. Polymer and nylon specimens were manufactured by 3D printing. Quasi-static uniaxial tensile tests were conducted followed by finite element (FE) simulations. The deformation, tensile stress-strain curves and energy absorption of these architected composites are investigated. In addition, the standard mechanics homogenization is implemented through FE modelling to accurately predict the effective mechanical properties of arrowhead shape structures. A good agreement is observed between the results of detailed FE modelling and homogenization predictions. Subsequently, the effect of initial arrowhead angle is studied using FE analysis.
Publication date
PublisherRMIT University
International Committee on Composite Materials
In
  • Proceedings of the 2019 International Conference on Composite Materials (16 August 2019).
Series
  • International Conference on Composite Materials (ICCM).
LanguageEnglish
Peer reviewedNo
Identifier173
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Record identifier2b58f46d-09b2-428d-984d-a3933efcaad0
Record created2022-04-06
Record modified2022-04-07
Date modified: