SUBCRITICAL CRACK-GROWTH AND THRESHOLD IN BOROSILICATE GLASS

被引：21

作者：

FETT, T

GERMERDONK, K

GROSSMULLER, A

KELLER, K

MUNZ, D

机构：

[1] Kernforschungszentrum Karlsruhe, Institut für Material- und Festkörperforschung IV, Universität Karlsruhe

[2] Institut für Zuverlässigkeit und Schadenskunde im Maschinenbau, Karlsruhe, D-7500

来源：

JOURNAL OF MATERIALS SCIENCE | 1991年 / 26卷 / 01期

关键词：

LIFETIME MEASUREMENTS;

D O I：

10.1007/BF00576060

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The crack-growth behaviour of borosilicate glass was investigated by use of lifetime measurements on Knoop-damaged specimens. The threshold behaviour in particular was observed, and the influence of residual wedging stresses and preloading below the threshold value were studied in detail. A threshold of K(Ith) = 0.38 MPam1/2 was found. The residual stress intensity factor caused by the Knoop indentations was found to be K(Ires, 0) congruent-to-0.1 MPam1/2. In a static test performed below the threshold, the threshold value was increased by DELTA-K(Ith)-congruent-to-0.15 MPam1/2.

引用

页码：253 / 257

页数：5

共 8 条

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[2]

FETT T, 1985, J AM CERAM SOC, V68, pC213, DOI 10.1111/j.1151-2916.1985.tb10189.x

[3] DETERMINATION OF SUBCRITICAL CRACK-GROWTH ON GLASS IN WATER FROM LIFETIME MEASUREMENTS ON KNOOP-CRACKED SPECIMENS [J].