Influence of toughness on Weibull modulus of ceramic bending strength

被引：89

作者：

Kendall, K. ^{[1
]}

Alford, N. McN. ^{[1
]}

Tan, S. R. ^{[1
]}

Birchall, J. D. ^{[1
]}

机构：

[1] ICI New Sci Grp, Runcorn, Cheshire, England

来源：

JOURNAL OF MATERIALS RESEARCH | 1986年 / 1卷 / 01期

关键词：

BENDING STRENGTH - BRITTLENESS - ELASTIC CONSTANTS - FLEXURAL STRENGTH - WEIBULL MODULUS;

D O I：

10.1557/JMR.1986.0120

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It is demonstrated both theoretically and experimentally that fracture toughness does not directly influence the Weibull modulus of ceramic bending strength for materials that obey the Griffith criterion for crack propagation. Weibull modulus remains unchanged as toughness is increased. However, toughness variations with crack length do affect the Weibull modulus. Thus materials that display R-curve behavior or Dugdale character give an increased Weibull modulus and appear more reliable.

引用

页码：120 / 123

页数：4

共 11 条

[1] BIRCHALL JD, 1981, NATURE, V292, P89, DOI 10.1038/292089c0
[2] De A., 1979, FRACTURE ENG BRITTLE, P124
[3] YIELDING OF STEEL SHEETS CONTAINING SLITS
DUGDALE, DS
[J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1960, 8 (02) : 100 - 104
[4] Griffith A.A., 1920, PHILOS T R SOC LON A, V221, P163, DOI [10.1098/rsta.1921.0006, DOI 10.1098/RSTA.1921.0006]
[5] THE RELATION BETWEEN POROSITY, MICROSTRUCTURE AND STRENGTH, AND THE APPROACH TO ADVANCED CEMENT-BASED MATERIALS
KENDALL, K
HOWARD, AJ
BIRCHALL, JD
[J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1983, 310 (1511): : 139 - +
[6] KENDALL K, 1985, PHILOS MAG A, V52, P561, DOI 10.1080/01418618508237647
[7] Knott J. F., 1973, FUNDAMENTALS FRACTUR, P67
[8] Krafft J. M., 1961, P CRACK PROPAGATION, V1, P8
[9] Larsen D. C., 1984, P 22 DEP EN ATD CONT, P399
[10] SWAIN MV, 1984, ADV CERAM, V12, P225

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