Edge chipping of brittle materials: Effect of side-wall inclination and loading angle

Herzl Chai; Brian R. Lawn

doi:10.1007/s10704-007-9113-2

Edge chipping of brittle materials: Effect of side-wall inclination and loading angle

Herzl Chai, Brian R. Lawn

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

An earlier analysis of chipping fracture in brittle solids is here extended to include the case of blocks with inclined side faces and non-normal contact loading. The simple relation P_F =βK_ch^3/2 for the critical chipping load P_F in terms of indent location h and material toughness K_c is preserved, with angular coordinates simply incorporated into the β coefficient. Chipping fracture tests using a Vickers indenter near the edges of glass blocks with non-orthogonal faces is used to validate the analysis. Implications of the results in relation to practical engineering, biomechanical and anthropological structures are indicated.

Original language	English
Pages (from-to)	159-165
Number of pages	7
Journal	International Journal of Fracture
Volume	145
Issue number	2
DOIs	https://doi.org/10.1007/s10704-007-9113-2
State	Published - May 2007

Keywords

Angular coordinates
Brittle ceramics
Edge chipping
Inclined loading
Toughness
Vickers indentation

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10.1007/s10704-007-9113-2

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title = "Edge chipping of brittle materials: Effect of side-wall inclination and loading angle",

abstract = "An earlier analysis of chipping fracture in brittle solids is here extended to include the case of blocks with inclined side faces and non-normal contact loading. The simple relation PF =βKch3/2 for the critical chipping load PF in terms of indent location h and material toughness Kc is preserved, with angular coordinates simply incorporated into the β coefficient. Chipping fracture tests using a Vickers indenter near the edges of glass blocks with non-orthogonal faces is used to validate the analysis. Implications of the results in relation to practical engineering, biomechanical and anthropological structures are indicated.",

keywords = "Angular coordinates, Brittle ceramics, Edge chipping, Inclined loading, Toughness, Vickers indentation",

author = "Herzl Chai and Lawn, {Brian R.}",

note = "Funding Information: Acknowledgements This work was supported by a grant from the U.S. National Institute of Dental and Craniofacial Research (PO1 DE10976).",

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T2 - Effect of side-wall inclination and loading angle

AU - Chai, Herzl

AU - Lawn, Brian R.

N1 - Funding Information: Acknowledgements This work was supported by a grant from the U.S. National Institute of Dental and Craniofacial Research (PO1 DE10976).

PY - 2007/5

Y1 - 2007/5

N2 - An earlier analysis of chipping fracture in brittle solids is here extended to include the case of blocks with inclined side faces and non-normal contact loading. The simple relation PF =βKch3/2 for the critical chipping load PF in terms of indent location h and material toughness Kc is preserved, with angular coordinates simply incorporated into the β coefficient. Chipping fracture tests using a Vickers indenter near the edges of glass blocks with non-orthogonal faces is used to validate the analysis. Implications of the results in relation to practical engineering, biomechanical and anthropological structures are indicated.

AB - An earlier analysis of chipping fracture in brittle solids is here extended to include the case of blocks with inclined side faces and non-normal contact loading. The simple relation PF =βKch3/2 for the critical chipping load PF in terms of indent location h and material toughness Kc is preserved, with angular coordinates simply incorporated into the β coefficient. Chipping fracture tests using a Vickers indenter near the edges of glass blocks with non-orthogonal faces is used to validate the analysis. Implications of the results in relation to practical engineering, biomechanical and anthropological structures are indicated.

KW - Angular coordinates

KW - Brittle ceramics

KW - Edge chipping

KW - Inclined loading

KW - Toughness

KW - Vickers indentation

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JO - International Journal of Fracture

JF - International Journal of Fracture

SN - 0376-9429

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ER -

Edge chipping of brittle materials: Effect of side-wall inclination and loading angle

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