The effect of lateral crack growth on the strength of contact flaws in brittle materials
Abstract The effect of lateral cracks on strength controlling contact flaws in brittle materials is examined. Inert strength studies using controlled indentation flaws on a range of ceramic, glass, and single crystal materials reveal significant increases in strength at large contact loads, above th...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Cook, Robert F. [verfasserIn] |
|---|
| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1986 |
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| Systematik: |
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| Anmerkung: |
© The Materials Research Society 1986 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of materials research - Springer International Publishing, 1986, 1(1986), 4 vom: Juli, Seite 589-600 |
|---|---|
| Übergeordnetes Werk: |
volume:1 ; year:1986 ; number:4 ; month:07 ; pages:589-600 |
| Links: |
|---|
| DOI / URN: |
10.1557/JMR.1986.0589 |
|---|
| Katalog-ID: |
OLC2119948143 |
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| 520 | |a Abstract The effect of lateral cracks on strength controlling contact flaws in brittle materials is examined. Inert strength studies using controlled indentation flaws on a range of ceramic, glass, and single crystal materials reveal significant increases in strength at large contact loads, above the predicted load dependence extrapolated from strength measurements at low indentation loads. The increases are explained by the growth of lateral cracks decohesing the plastic deformation zone associated with the contact from the elastically restraining matrix, thereby reducing the residual stress field driving the strength controlling radial cracks. A strength formulation is developed from indentation fracture mechanics which permits inert strengths to be described over the full range of contact loads. The formulation takes account of the decreased constraint of the plastic deformation zone by lateral crack growth as well as post-contact nonequilibrium growth of the radial cracks. Simple extensions permit the strengths of specimens controlled by impact flaws to be described, as well as those failing under nonequilibrium (fatigue) conditions. The implications for materials evaluation using indentation techniques are discussed and the dangers of unqualified use of strength measurements at large indentation loads pointed out. The work reinforces the conclusion that a full understanding of the residual stress field at dominant contact flaws is necessary to describe the strength of brittle materials. | ||
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10.1557/JMR.1986.0589 doi (DE-627)OLC2119948143 (DE-He213)JMR.1986.0589-p DE-627 ger DE-627 rakwb eng 670 VZ VA 5350 VZ rvk Cook, Robert F. verfasserin aut The effect of lateral crack growth on the strength of contact flaws in brittle materials 1986 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Materials Research Society 1986 Abstract The effect of lateral cracks on strength controlling contact flaws in brittle materials is examined. Inert strength studies using controlled indentation flaws on a range of ceramic, glass, and single crystal materials reveal significant increases in strength at large contact loads, above the predicted load dependence extrapolated from strength measurements at low indentation loads. The increases are explained by the growth of lateral cracks decohesing the plastic deformation zone associated with the contact from the elastically restraining matrix, thereby reducing the residual stress field driving the strength controlling radial cracks. A strength formulation is developed from indentation fracture mechanics which permits inert strengths to be described over the full range of contact loads. The formulation takes account of the decreased constraint of the plastic deformation zone by lateral crack growth as well as post-contact nonequilibrium growth of the radial cracks. Simple extensions permit the strengths of specimens controlled by impact flaws to be described, as well as those failing under nonequilibrium (fatigue) conditions. The implications for materials evaluation using indentation techniques are discussed and the dangers of unqualified use of strength measurements at large indentation loads pointed out. The work reinforces the conclusion that a full understanding of the residual stress field at dominant contact flaws is necessary to describe the strength of brittle materials. Roach, David H. aut Enthalten in Journal of materials research Springer International Publishing, 1986 1(1986), 4 vom: Juli, Seite 589-600 (DE-627)129206288 (DE-600)54876-5 (DE-576)01445744X 0884-2914 nnns volume:1 year:1986 number:4 month:07 pages:589-600 https://doi.org/10.1557/JMR.1986.0589 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_21 GBV_ILN_22 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_70 GBV_ILN_100 GBV_ILN_2005 GBV_ILN_2010 GBV_ILN_2027 GBV_ILN_4126 GBV_ILN_4155 GBV_ILN_4313 GBV_ILN_4315 GBV_ILN_4319 GBV_ILN_4323 VA 5350 AR 1 1986 4 07 589-600 |
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10.1557/JMR.1986.0589 doi (DE-627)OLC2119948143 (DE-He213)JMR.1986.0589-p DE-627 ger DE-627 rakwb eng 670 VZ VA 5350 VZ rvk Cook, Robert F. verfasserin aut The effect of lateral crack growth on the strength of contact flaws in brittle materials 1986 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Materials Research Society 1986 Abstract The effect of lateral cracks on strength controlling contact flaws in brittle materials is examined. Inert strength studies using controlled indentation flaws on a range of ceramic, glass, and single crystal materials reveal significant increases in strength at large contact loads, above the predicted load dependence extrapolated from strength measurements at low indentation loads. The increases are explained by the growth of lateral cracks decohesing the plastic deformation zone associated with the contact from the elastically restraining matrix, thereby reducing the residual stress field driving the strength controlling radial cracks. A strength formulation is developed from indentation fracture mechanics which permits inert strengths to be described over the full range of contact loads. The formulation takes account of the decreased constraint of the plastic deformation zone by lateral crack growth as well as post-contact nonequilibrium growth of the radial cracks. Simple extensions permit the strengths of specimens controlled by impact flaws to be described, as well as those failing under nonequilibrium (fatigue) conditions. The implications for materials evaluation using indentation techniques are discussed and the dangers of unqualified use of strength measurements at large indentation loads pointed out. The work reinforces the conclusion that a full understanding of the residual stress field at dominant contact flaws is necessary to describe the strength of brittle materials. Roach, David H. aut Enthalten in Journal of materials research Springer International Publishing, 1986 1(1986), 4 vom: Juli, Seite 589-600 (DE-627)129206288 (DE-600)54876-5 (DE-576)01445744X 0884-2914 nnns volume:1 year:1986 number:4 month:07 pages:589-600 https://doi.org/10.1557/JMR.1986.0589 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_21 GBV_ILN_22 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_70 GBV_ILN_100 GBV_ILN_2005 GBV_ILN_2010 GBV_ILN_2027 GBV_ILN_4126 GBV_ILN_4155 GBV_ILN_4313 GBV_ILN_4315 GBV_ILN_4319 GBV_ILN_4323 VA 5350 AR 1 1986 4 07 589-600 |
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10.1557/JMR.1986.0589 doi (DE-627)OLC2119948143 (DE-He213)JMR.1986.0589-p DE-627 ger DE-627 rakwb eng 670 VZ VA 5350 VZ rvk Cook, Robert F. verfasserin aut The effect of lateral crack growth on the strength of contact flaws in brittle materials 1986 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Materials Research Society 1986 Abstract The effect of lateral cracks on strength controlling contact flaws in brittle materials is examined. Inert strength studies using controlled indentation flaws on a range of ceramic, glass, and single crystal materials reveal significant increases in strength at large contact loads, above the predicted load dependence extrapolated from strength measurements at low indentation loads. The increases are explained by the growth of lateral cracks decohesing the plastic deformation zone associated with the contact from the elastically restraining matrix, thereby reducing the residual stress field driving the strength controlling radial cracks. A strength formulation is developed from indentation fracture mechanics which permits inert strengths to be described over the full range of contact loads. The formulation takes account of the decreased constraint of the plastic deformation zone by lateral crack growth as well as post-contact nonequilibrium growth of the radial cracks. Simple extensions permit the strengths of specimens controlled by impact flaws to be described, as well as those failing under nonequilibrium (fatigue) conditions. The implications for materials evaluation using indentation techniques are discussed and the dangers of unqualified use of strength measurements at large indentation loads pointed out. The work reinforces the conclusion that a full understanding of the residual stress field at dominant contact flaws is necessary to describe the strength of brittle materials. Roach, David H. aut Enthalten in Journal of materials research Springer International Publishing, 1986 1(1986), 4 vom: Juli, Seite 589-600 (DE-627)129206288 (DE-600)54876-5 (DE-576)01445744X 0884-2914 nnns volume:1 year:1986 number:4 month:07 pages:589-600 https://doi.org/10.1557/JMR.1986.0589 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_21 GBV_ILN_22 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_70 GBV_ILN_100 GBV_ILN_2005 GBV_ILN_2010 GBV_ILN_2027 GBV_ILN_4126 GBV_ILN_4155 GBV_ILN_4313 GBV_ILN_4315 GBV_ILN_4319 GBV_ILN_4323 VA 5350 AR 1 1986 4 07 589-600 |
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10.1557/JMR.1986.0589 doi (DE-627)OLC2119948143 (DE-He213)JMR.1986.0589-p DE-627 ger DE-627 rakwb eng 670 VZ VA 5350 VZ rvk Cook, Robert F. verfasserin aut The effect of lateral crack growth on the strength of contact flaws in brittle materials 1986 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Materials Research Society 1986 Abstract The effect of lateral cracks on strength controlling contact flaws in brittle materials is examined. Inert strength studies using controlled indentation flaws on a range of ceramic, glass, and single crystal materials reveal significant increases in strength at large contact loads, above the predicted load dependence extrapolated from strength measurements at low indentation loads. The increases are explained by the growth of lateral cracks decohesing the plastic deformation zone associated with the contact from the elastically restraining matrix, thereby reducing the residual stress field driving the strength controlling radial cracks. A strength formulation is developed from indentation fracture mechanics which permits inert strengths to be described over the full range of contact loads. The formulation takes account of the decreased constraint of the plastic deformation zone by lateral crack growth as well as post-contact nonequilibrium growth of the radial cracks. Simple extensions permit the strengths of specimens controlled by impact flaws to be described, as well as those failing under nonequilibrium (fatigue) conditions. The implications for materials evaluation using indentation techniques are discussed and the dangers of unqualified use of strength measurements at large indentation loads pointed out. The work reinforces the conclusion that a full understanding of the residual stress field at dominant contact flaws is necessary to describe the strength of brittle materials. Roach, David H. aut Enthalten in Journal of materials research Springer International Publishing, 1986 1(1986), 4 vom: Juli, Seite 589-600 (DE-627)129206288 (DE-600)54876-5 (DE-576)01445744X 0884-2914 nnns volume:1 year:1986 number:4 month:07 pages:589-600 https://doi.org/10.1557/JMR.1986.0589 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_21 GBV_ILN_22 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_70 GBV_ILN_100 GBV_ILN_2005 GBV_ILN_2010 GBV_ILN_2027 GBV_ILN_4126 GBV_ILN_4155 GBV_ILN_4313 GBV_ILN_4315 GBV_ILN_4319 GBV_ILN_4323 VA 5350 AR 1 1986 4 07 589-600 |
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10.1557/JMR.1986.0589 doi (DE-627)OLC2119948143 (DE-He213)JMR.1986.0589-p DE-627 ger DE-627 rakwb eng 670 VZ VA 5350 VZ rvk Cook, Robert F. verfasserin aut The effect of lateral crack growth on the strength of contact flaws in brittle materials 1986 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Materials Research Society 1986 Abstract The effect of lateral cracks on strength controlling contact flaws in brittle materials is examined. Inert strength studies using controlled indentation flaws on a range of ceramic, glass, and single crystal materials reveal significant increases in strength at large contact loads, above the predicted load dependence extrapolated from strength measurements at low indentation loads. The increases are explained by the growth of lateral cracks decohesing the plastic deformation zone associated with the contact from the elastically restraining matrix, thereby reducing the residual stress field driving the strength controlling radial cracks. A strength formulation is developed from indentation fracture mechanics which permits inert strengths to be described over the full range of contact loads. The formulation takes account of the decreased constraint of the plastic deformation zone by lateral crack growth as well as post-contact nonequilibrium growth of the radial cracks. Simple extensions permit the strengths of specimens controlled by impact flaws to be described, as well as those failing under nonequilibrium (fatigue) conditions. The implications for materials evaluation using indentation techniques are discussed and the dangers of unqualified use of strength measurements at large indentation loads pointed out. The work reinforces the conclusion that a full understanding of the residual stress field at dominant contact flaws is necessary to describe the strength of brittle materials. Roach, David H. aut Enthalten in Journal of materials research Springer International Publishing, 1986 1(1986), 4 vom: Juli, Seite 589-600 (DE-627)129206288 (DE-600)54876-5 (DE-576)01445744X 0884-2914 nnns volume:1 year:1986 number:4 month:07 pages:589-600 https://doi.org/10.1557/JMR.1986.0589 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_21 GBV_ILN_22 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_70 GBV_ILN_100 GBV_ILN_2005 GBV_ILN_2010 GBV_ILN_2027 GBV_ILN_4126 GBV_ILN_4155 GBV_ILN_4313 GBV_ILN_4315 GBV_ILN_4319 GBV_ILN_4323 VA 5350 AR 1 1986 4 07 589-600 |
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The effect of lateral crack growth on the strength of contact flaws in brittle materials |
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Cook, Robert F. |
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1986 |
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Cook, Robert F. Roach, David H. |
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Cook, Robert F. |
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10.1557/JMR.1986.0589 |
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670 |
| title_sort |
the effect of lateral crack growth on the strength of contact flaws in brittle materials |
| title_auth |
The effect of lateral crack growth on the strength of contact flaws in brittle materials |
| abstract |
Abstract The effect of lateral cracks on strength controlling contact flaws in brittle materials is examined. Inert strength studies using controlled indentation flaws on a range of ceramic, glass, and single crystal materials reveal significant increases in strength at large contact loads, above the predicted load dependence extrapolated from strength measurements at low indentation loads. The increases are explained by the growth of lateral cracks decohesing the plastic deformation zone associated with the contact from the elastically restraining matrix, thereby reducing the residual stress field driving the strength controlling radial cracks. A strength formulation is developed from indentation fracture mechanics which permits inert strengths to be described over the full range of contact loads. The formulation takes account of the decreased constraint of the plastic deformation zone by lateral crack growth as well as post-contact nonequilibrium growth of the radial cracks. Simple extensions permit the strengths of specimens controlled by impact flaws to be described, as well as those failing under nonequilibrium (fatigue) conditions. The implications for materials evaluation using indentation techniques are discussed and the dangers of unqualified use of strength measurements at large indentation loads pointed out. The work reinforces the conclusion that a full understanding of the residual stress field at dominant contact flaws is necessary to describe the strength of brittle materials. © The Materials Research Society 1986 |
| abstractGer |
Abstract The effect of lateral cracks on strength controlling contact flaws in brittle materials is examined. Inert strength studies using controlled indentation flaws on a range of ceramic, glass, and single crystal materials reveal significant increases in strength at large contact loads, above the predicted load dependence extrapolated from strength measurements at low indentation loads. The increases are explained by the growth of lateral cracks decohesing the plastic deformation zone associated with the contact from the elastically restraining matrix, thereby reducing the residual stress field driving the strength controlling radial cracks. A strength formulation is developed from indentation fracture mechanics which permits inert strengths to be described over the full range of contact loads. The formulation takes account of the decreased constraint of the plastic deformation zone by lateral crack growth as well as post-contact nonequilibrium growth of the radial cracks. Simple extensions permit the strengths of specimens controlled by impact flaws to be described, as well as those failing under nonequilibrium (fatigue) conditions. The implications for materials evaluation using indentation techniques are discussed and the dangers of unqualified use of strength measurements at large indentation loads pointed out. The work reinforces the conclusion that a full understanding of the residual stress field at dominant contact flaws is necessary to describe the strength of brittle materials. © The Materials Research Society 1986 |
| abstract_unstemmed |
Abstract The effect of lateral cracks on strength controlling contact flaws in brittle materials is examined. Inert strength studies using controlled indentation flaws on a range of ceramic, glass, and single crystal materials reveal significant increases in strength at large contact loads, above the predicted load dependence extrapolated from strength measurements at low indentation loads. The increases are explained by the growth of lateral cracks decohesing the plastic deformation zone associated with the contact from the elastically restraining matrix, thereby reducing the residual stress field driving the strength controlling radial cracks. A strength formulation is developed from indentation fracture mechanics which permits inert strengths to be described over the full range of contact loads. The formulation takes account of the decreased constraint of the plastic deformation zone by lateral crack growth as well as post-contact nonequilibrium growth of the radial cracks. Simple extensions permit the strengths of specimens controlled by impact flaws to be described, as well as those failing under nonequilibrium (fatigue) conditions. The implications for materials evaluation using indentation techniques are discussed and the dangers of unqualified use of strength measurements at large indentation loads pointed out. The work reinforces the conclusion that a full understanding of the residual stress field at dominant contact flaws is necessary to describe the strength of brittle materials. © The Materials Research Society 1986 |
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The effect of lateral crack growth on the strength of contact flaws in brittle materials |
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