On internal cone cracks induced by conical indentation in brittle materials

J. YAN; A.M. KARLSSON; X. CHEN

doi:10.1016/j.engfracmech.2006.12.005

On internal cone cracks induced by conical indentation in brittle materials

J. YAN, A.M. KARLSSON^*, X. CHEN

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

14 Citations (Scopus)

Abstract

The conditions for cone cracks to develop due to a conical indentation are investigated. Axisymmetric numerical simulations, based on the finite element method, are conducted, assuming a linear-elastic, perfectly plastic material. A superposition scheme is employed to simulate a range of crack geometries, including various lengths and orientations. The results indicate that the class of cracks investigated is prone to develop internally in brittle materials. Based on a reversed analysis, a new technique is proposed for measuring the fracture toughness in bulk material and thick coatings through one simple indentation test when the cone crack appears. © 2006 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	2535-2546
Number of pages	12
Journal	Engineering Fracture Mechanics
Volume	74
Issue number	16
Early online date	23 Jan 2007
DOIs	https://doi.org/10.1016/j.engfracmech.2006.12.005
Publication status	Published - Nov 2007
Externally published	Yes

Funding

The work of J.Y. and A.M.K. is supported by NSF DMR-0346664. The work of X.C. is supported by NSF CMS-0407743.

Keywords

Cone cracks
Finite element analysis
Instrumented indentation

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10.1016/j.engfracmech.2006.12.005

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title = "On internal cone cracks induced by conical indentation in brittle materials",

abstract = "The conditions for cone cracks to develop due to a conical indentation are investigated. Axisymmetric numerical simulations, based on the finite element method, are conducted, assuming a linear-elastic, perfectly plastic material. A superposition scheme is employed to simulate a range of crack geometries, including various lengths and orientations. The results indicate that the class of cracks investigated is prone to develop internally in brittle materials. Based on a reversed analysis, a new technique is proposed for measuring the fracture toughness in bulk material and thick coatings through one simple indentation test when the cone crack appears. {\textcopyright} 2006 Elsevier Ltd. All rights reserved.",

keywords = "Cone cracks, Finite element analysis, Instrumented indentation",

author = "J. YAN and A.M. KARLSSON and X. CHEN",

year = "2007",

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doi = "10.1016/j.engfracmech.2006.12.005",

language = "English",

volume = "74",

pages = "2535--2546",

journal = "Engineering Fracture Mechanics",

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TY - JOUR

T1 - On internal cone cracks induced by conical indentation in brittle materials

AU - YAN, J.

AU - KARLSSON, A.M.

AU - CHEN, X.

PY - 2007/11

Y1 - 2007/11

N2 - The conditions for cone cracks to develop due to a conical indentation are investigated. Axisymmetric numerical simulations, based on the finite element method, are conducted, assuming a linear-elastic, perfectly plastic material. A superposition scheme is employed to simulate a range of crack geometries, including various lengths and orientations. The results indicate that the class of cracks investigated is prone to develop internally in brittle materials. Based on a reversed analysis, a new technique is proposed for measuring the fracture toughness in bulk material and thick coatings through one simple indentation test when the cone crack appears. © 2006 Elsevier Ltd. All rights reserved.

AB - The conditions for cone cracks to develop due to a conical indentation are investigated. Axisymmetric numerical simulations, based on the finite element method, are conducted, assuming a linear-elastic, perfectly plastic material. A superposition scheme is employed to simulate a range of crack geometries, including various lengths and orientations. The results indicate that the class of cracks investigated is prone to develop internally in brittle materials. Based on a reversed analysis, a new technique is proposed for measuring the fracture toughness in bulk material and thick coatings through one simple indentation test when the cone crack appears. © 2006 Elsevier Ltd. All rights reserved.

KW - Cone cracks

KW - Finite element analysis

KW - Instrumented indentation

UR - http://www.scopus.com/inward/record.url?scp=34547482093&partnerID=8YFLogxK

U2 - 10.1016/j.engfracmech.2006.12.005

DO - 10.1016/j.engfracmech.2006.12.005

M3 - Journal Article (refereed)

SN - 0013-7944

VL - 74

SP - 2535

EP - 2546

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

IS - 16

ER -

On internal cone cracks induced by conical indentation in brittle materials

Abstract

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Keywords

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