4.7 Article

Investigations on anisotropic fracture mechanics of graphitic foams

Journal

RESULTS IN PHYSICS
Volume 7, Issue -, Pages 2043-2053

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.rinp.2017.06.024

Keywords

Graphitic foam; Brittle foam; Fracture mechanics; Anisotropy; Crush

Funding

  1. European Commission Research Executive Agency under the FP7 MC ITN 'TALENT' [289161]
  2. local partner Dutch Foundation for Fundamental Research on Matter (FOM)

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This work investigates destructive (crush) compressive and shear behaviour of Poco-HTCTM, which is a porous graphitic carbon foam. This material is anisotropic, and compressive measurements were made in both out-of-plane and in-plane directions. A camera filmed the tests to visually study crack formation and growth at macro-scale. Scanning electron microscopy images of fracture surfaces were recorded to examine post-failure material formation at micro-and meso-scales. In another series of tests, cyclic uniaxial compression measurements were performed in the elastic regime to characterise this behavior. Some of the samples were crushed after the cyclic test to measure strength. (C) 2017 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license

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