Discussion: Strength-to-fracture scaling in scratching

Ange Therese Akono; Franz Josef Ulm; Zdeněk P. Bažant

doi:10.1016/j.engfracmech.2014.02.025

Discussion: Strength-to-fracture scaling in scratching

Ange Therese Akono^*, Franz Josef Ulm, Zdeněk P. Bažant

^*Corresponding author for this work

Civil and Environmental Engineering

Research output: Contribution to journal › Comment/debate › peer-review

41 Scopus citations

Abstract

In their paper, Lin and Zhou (2013) add a new dimension to the scratch test analysis, challenging the applicability of Linear Elastic Fracture Mechanics to scratch tests. The question raised is how to integrate the three-dimensionality of scratch tests into the energetic Size Effect Law (SEL) formulated by Bažant for quasi-brittle materials. We show that Lin and Zhou's analysis, although relevant is incomplete, as it neglects the blade width, which is critical for the fracture property assessment. In return, if the blade width is properly taken into account, the SEL here proposed is a formidable means to ascertain the fracture toughness from scratching.

Original language	English (US)
Pages (from-to)	21-28
Number of pages	8
Journal	Engineering Fracture Mechanics
Volume	119
DOIs	https://doi.org/10.1016/j.engfracmech.2014.02.025
State	Published - Mar 2014

Keywords

Ductile-to-brittle transition
Fracture mechanics
J-Integral
Scratch tests

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1016/j.engfracmech.2014.02.025

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title = "Discussion: Strength-to-fracture scaling in scratching",

abstract = "In their paper, Lin and Zhou (2013) add a new dimension to the scratch test analysis, challenging the applicability of Linear Elastic Fracture Mechanics to scratch tests. The question raised is how to integrate the three-dimensionality of scratch tests into the energetic Size Effect Law (SEL) formulated by Ba{\v z}ant for quasi-brittle materials. We show that Lin and Zhou's analysis, although relevant is incomplete, as it neglects the blade width, which is critical for the fracture property assessment. In return, if the blade width is properly taken into account, the SEL here proposed is a formidable means to ascertain the fracture toughness from scratching.",

keywords = "Ductile-to-brittle transition, Fracture mechanics, J-Integral, Scratch tests",

author = "Akono, {Ange Therese} and Ulm, {Franz Josef} and Ba{\v z}ant, {Zden{\v e}k P.}",

year = "2014",

month = mar,

doi = "10.1016/j.engfracmech.2014.02.025",

language = "English (US)",

volume = "119",

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journal = "Engineering Fracture Mechanics",

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T1 - Discussion

T2 - Strength-to-fracture scaling in scratching

AU - Akono, Ange Therese

AU - Ulm, Franz Josef

AU - Bažant, Zdeněk P.

PY - 2014/3

Y1 - 2014/3

N2 - In their paper, Lin and Zhou (2013) add a new dimension to the scratch test analysis, challenging the applicability of Linear Elastic Fracture Mechanics to scratch tests. The question raised is how to integrate the three-dimensionality of scratch tests into the energetic Size Effect Law (SEL) formulated by Bažant for quasi-brittle materials. We show that Lin and Zhou's analysis, although relevant is incomplete, as it neglects the blade width, which is critical for the fracture property assessment. In return, if the blade width is properly taken into account, the SEL here proposed is a formidable means to ascertain the fracture toughness from scratching.

AB - In their paper, Lin and Zhou (2013) add a new dimension to the scratch test analysis, challenging the applicability of Linear Elastic Fracture Mechanics to scratch tests. The question raised is how to integrate the three-dimensionality of scratch tests into the energetic Size Effect Law (SEL) formulated by Bažant for quasi-brittle materials. We show that Lin and Zhou's analysis, although relevant is incomplete, as it neglects the blade width, which is critical for the fracture property assessment. In return, if the blade width is properly taken into account, the SEL here proposed is a formidable means to ascertain the fracture toughness from scratching.

KW - Ductile-to-brittle transition

KW - Fracture mechanics

KW - J-Integral

KW - Scratch tests

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DO - 10.1016/j.engfracmech.2014.02.025

M3 - Comment/debate

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VL - 119

SP - 21

EP - 28

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

ER -

Discussion: Strength-to-fracture scaling in scratching

Abstract

Keywords

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