Abstract : Nanoindentation corrected for thermal drift has been performed on binderless flexible graphite with a Berkovich tip, and the numerical modelling of the results has been carried out. The nanoindentation load-displacement curves of the samples were obtained under different peak loads ranging from 100 µN to 1 mN. Finite Element Method was applied for analysing the loading and unloading parts of these curves, using an elasto-plastic model and assuming flexible graphite as a continuous medium. The difficulties in determining the mechanical properties of binderless flexible graphite from the nanoindentation load-displacement curves were discussed. Numerical results were compared to experimental nanoindentation curves, and some mechanical parameters of this material were determined for the first time.
https://hal.univ-lorraine.fr/hal-03562582 Contributor : Maria Vanessa Fierro PastorConnect in order to contact the contributor Submitted on : Wednesday, February 9, 2022 - 9:52:34 AM Last modification on : Wednesday, April 20, 2022 - 9:05:34 AM Long-term archiving on: : Tuesday, May 10, 2022 - 6:25:00 PM
Khelifa M, V. Fierro, Macutkevic J, Celzard A. Nanoindentation of flexible graphite: experimental versus simulation studies. Review in Advanced Material Science, 2018, 3 (2), ⟨10.15761/ams.1000142⟩. ⟨hal-03562582⟩