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The Compelling Case for Indentation as a Functional Exploratory and Characterization Tool

Marshall, David B; Cook, R F; Padture, Nitin P.; Oyen, Michelle L.; Pajares, Antonia; Bradby, Jodie; Reimanis, Ivar E.; Tandon, Rajan; Page, Trevor F.; Pharr, George M.; Lawn, Brian

Description

The utility of indentation testing for characterizing a wide range of mechanical properties of brittle materials is highlighted in light of recent articles questioning its validity, specifically in relation to the measurement of toughness. Contrary to assertion by some critics, indentation fracture theory is fundamentally founded in Griffith-Irwin fracture mechanics, based on model crack systems evolving within inhomogeneous but well-documented elastic and elastic-plastic contact stress fields....[Show more]

dc.contributor.authorMarshall, David B
dc.contributor.authorCook, R F
dc.contributor.authorPadture, Nitin P.
dc.contributor.authorOyen, Michelle L.
dc.contributor.authorPajares, Antonia
dc.contributor.authorBradby, Jodie
dc.contributor.authorReimanis, Ivar E.
dc.contributor.authorTandon, Rajan
dc.contributor.authorPage, Trevor F.
dc.contributor.authorPharr, George M.
dc.contributor.authorLawn, Brian
dc.date.accessioned2015-12-13T22:37:47Z
dc.identifier.issn0002-7820
dc.identifier.urihttp://hdl.handle.net/1885/77247
dc.description.abstractThe utility of indentation testing for characterizing a wide range of mechanical properties of brittle materials is highlighted in light of recent articles questioning its validity, specifically in relation to the measurement of toughness. Contrary to assertion by some critics, indentation fracture theory is fundamentally founded in Griffith-Irwin fracture mechanics, based on model crack systems evolving within inhomogeneous but well-documented elastic and elastic-plastic contact stress fields. Notwithstanding some numerical uncertainty in associated stress intensity factor relations, the technique remains an unrivalled quick, convenient and economical means for comparative, site-specific toughness evaluation. Most importantly, indentation patterns are unique fingerprints of mechanical behavior and thereby afford a powerful functional tool for exploring the richness of material diversity. At the same time, it is cautioned that unconditional usage without due attention to the conformation of the indentation patterns can lead to overstated toughness values. Limitations of an alternative, more engineering approach to fracture evaluation, that of propagating a precrack through a "standard" machined specimen, are also outlined. Misconceptions in the critical literature concerning the fundamental nature of crack equilibrium and stability within contact and other inhomogeneous stress fields are discussed.
dc.publisherAmerican Ceramic Society
dc.sourceJournal of the American Ceramic Society
dc.titleThe Compelling Case for Indentation as a Functional Exploratory and Characterization Tool
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume98
dc.date.issued2015
local.identifier.absfor020406 - Surfaces and Structural Properties of Condensed Matter
local.identifier.ariespublicationU3488905xPUB6144
local.type.statusPublished Version
local.contributor.affiliationMarshall, David B, Teledyne Scientific Co
local.contributor.affiliationCook, R F, National Institute of Standards and Technology
local.contributor.affiliationPadture, Nitin P., Brown University
local.contributor.affiliationOyen, Michelle L., Cambridge University
local.contributor.affiliationPajares, Antonia, Universidad de Extremadura
local.contributor.affiliationBradby, Jodie, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationReimanis, Ivar E., Colorado School of Mines
local.contributor.affiliationTandon, Rajan, Sandia National Laboratories
local.contributor.affiliationPage, Trevor F., Newcastle University
local.contributor.affiliationPharr, George M., University of Tennessee
local.contributor.affiliationLawn, Brian, National Institute of Standards and Technology
local.description.embargo2037-12-31
local.bibliographicCitation.issue9
local.bibliographicCitation.startpage2671
local.bibliographicCitation.lastpage2680
local.identifier.doi10.1111/jace.13729
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
dc.date.updated2019-11-25T07:47:28Z
local.identifier.scopusID2-s2.0-84942878409
local.identifier.thomsonID000362229400001
CollectionsANU Research Publications

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