Modeling of deep indentation in brittle materials

We modelled deep indentation in brittle materials via a tensorial approach in three dimensions. Experimentally, we performed deep indentation in base catalyzed aerogels. When deep indentation is performed in these materials, it appears a Hertzian cone crack for both experimental and numerical result...

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Main Authors: Nathalie Olivi-Tran, Florence Despetis, Annelise Faivre
Format: Article
Language:English
Published: IOP Publishing 2020-01-01
Series:Materials Research Express
Subjects:
Online Access:https://doi.org/10.1088/2053-1591/ab7b29
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author Nathalie Olivi-Tran
Florence Despetis
Annelise Faivre
author_facet Nathalie Olivi-Tran
Florence Despetis
Annelise Faivre
author_sort Nathalie Olivi-Tran
collection DOAJ
description We modelled deep indentation in brittle materials via a tensorial approach in three dimensions. Experimentally, we performed deep indentation in base catalyzed aerogels. When deep indentation is performed in these materials, it appears a Hertzian cone crack for both experimental and numerical results. The cone angle (angle between the surface and the boundaries of the Hertzian cone) depends on the material in which indentation is performed. The Young moduli of the materials has no effect on these angles. The tendency is that materials with increasing Poisson ratios have a decreasing value of the Hertzian cone angle.
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spelling doaj.art-111ada7b5dc2469aa2891d375467dea92023-08-09T16:08:59ZengIOP PublishingMaterials Research Express2053-15912020-01-017303520110.1088/2053-1591/ab7b29Modeling of deep indentation in brittle materialsNathalie Olivi-Tran0https://orcid.org/0000-0001-8779-674XFlorence Despetis1Annelise Faivre2Universite Montpellier , Laboratoire Charles Coulomb UMR 5221, CC 074, place E.Bataillon, F-34095, Montpellier, FranceUniversite Montpellier , Laboratoire Charles Coulomb UMR 5221, CC 074, place E.Bataillon, F-34095, Montpellier, FranceUniversite Montpellier , Laboratoire Charles Coulomb UMR 5221, CC 074, place E.Bataillon, F-34095, Montpellier, FranceWe modelled deep indentation in brittle materials via a tensorial approach in three dimensions. Experimentally, we performed deep indentation in base catalyzed aerogels. When deep indentation is performed in these materials, it appears a Hertzian cone crack for both experimental and numerical results. The cone angle (angle between the surface and the boundaries of the Hertzian cone) depends on the material in which indentation is performed. The Young moduli of the materials has no effect on these angles. The tendency is that materials with increasing Poisson ratios have a decreasing value of the Hertzian cone angle.https://doi.org/10.1088/2053-1591/ab7b29hertzian conetensorial methodbrittle materialsfracture mechanics
spellingShingle Nathalie Olivi-Tran
Florence Despetis
Annelise Faivre
Modeling of deep indentation in brittle materials
Materials Research Express
hertzian cone
tensorial method
brittle materials
fracture mechanics
title Modeling of deep indentation in brittle materials
title_full Modeling of deep indentation in brittle materials
title_fullStr Modeling of deep indentation in brittle materials
title_full_unstemmed Modeling of deep indentation in brittle materials
title_short Modeling of deep indentation in brittle materials
title_sort modeling of deep indentation in brittle materials
topic hertzian cone
tensorial method
brittle materials
fracture mechanics
url https://doi.org/10.1088/2053-1591/ab7b29
work_keys_str_mv AT nathalieolivitran modelingofdeepindentationinbrittlematerials
AT florencedespetis modelingofdeepindentationinbrittlematerials
AT annelisefaivre modelingofdeepindentationinbrittlematerials