Propagation of Fatigue Cracks in Friction of Brittle Hydrogels

Research output: Contribution to journalArticle

Abstract

In order to understand fatigue crack propagation behavior in the friction of brittle hydrogels, we conducted reciprocating friction experiments between a hemi-cylindrical indenter and an agarose hydrogel block. We found that the fatigue life is greatly affected by the applied normal load as well as adhesion strength at the bottom of the gel–substrate interface. On the basis of in situ visualizations of the contact areas and observations of the fracture surfaces after the friction experiments, we suggest that the mechanical condition altered by the delamination of the hydrogel from the bottom substrate plays an essential role in determining the fatigue life of the hydrogel.
Original languageEnglish
Pages (from-to)53
Number of pages13
JournalGels
Volume4
Issue number2
DOIs
Publication statusPublished - 2018

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