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Scratching as a Fracture Process: From Butter to Steel

TitleScratching as a Fracture Process: From Butter to Steel
Publication TypeJournal Article
Year of Publication2011
AuthorsAkono A-T, Reis P.M, Ulm F-J
JournalPhysical Review Letters
Volume106
Issue20
PaginationArticle Number: 204302
Date PublishedMay-20-2011
ISSN0031-9007
Abstract

We present results of a hybrid experimental and theoretical investigation of the fracture scaling in scratch tests and show that scratching is a fracture dominated process. Validated for paraffin wax, cement paste, Jurassic limestone and steel, we derive a model that provides a quantitative means to relate quantities measured in scratch tests to fracture properties of materials at multiple scales. The scalability of scratching for different probes and depths opens new venues towards miniaturization of our technique, to extract fracture properties of materials at even smaller length scales.

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DOI10.1103/PhysRevLett.106.204302
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