Analysis of brittle fracture due to compressive loading using center-cracked Brazilian disk

被引：2

作者：

Chen Feng ^{[1
]}

Zhou Hongbin ^{[1
]}

Sun Zongqi ^{[1
]}

机构：

[1] Central South Univ of Technology, Changsha

来源：

Journal of Central South University of Technology | 1999年 / 6卷 / 1期

基金：

中国国家自然科学基金;

关键词：

brittle fracture; stress intensity factor; Brazilian disk; compression;

D O I：

10.1007/s11771-999-0031-5

中图分类号：

学科分类号：

摘要：

The center-cracked Brazilian disk subjected to diametral compressive stress uniformly distributed along parts of its cylindrical surface is used to investigate combined mode fracture of brittle material. A fracture analysis is made of this specimen configuration. Explicit formulae for mode I and mode II stress intensity factor calculation are derived based on boundary integral equation method and related numerical solution given by Atkinson. The proposed formulae are valid in wide range of crack length a/R. This configuration can avoid splitting along load line usually occurring in Brazilian test and permit one to achieve easily pure mode II crack growth (crack coplanar extension) and any combination of KI and KII by a simple alignment of crack orientation with respect to load line. SIF values from the present calculation and finite element solution are also given for comparison.

引用

页码：43 / 47

页数：4

共 15 条

[1]

Schmidt, R A, Fracture toughness testing of limestone (1976) Exp Mech, 16, pp. 161-167

[2]

Lai, M O, Lee, K H, K IC determination using a chevron notched compact tension specimen (1992) Engng Fract Mech, 41 (3), pp. 453-456

[3]

Sun, Zongqi, Quchterlony, F, Fracture toughness of stripa granite cores (1986) Int J Roch Mech Min Sci & Geomech Abstr, 23 (6), pp. 399-409

[4]

Horii, H, Nemat-Nasser, S, Compression-induced micro-crack growth in brittle solids: axial splitting and shear failure (1985) J Geophys Res, 90, pp. 3105-3125

[5]

Nemat-Nasser, S, Horii, H, Compression-induced nonplanar crack extension with application to splitting, exfoliation, and rockburst (1982) J Geophys Res, 87, pp. 6805-6821

[6]

Band, P, Reuschle, T, Charlez, P, An improved wing crack model for the deformation and failure of rock in compression (1996) Int J Rock Mech Min Sci & Geomech Abstr, 33 (5), pp. 539-542

[7]

Melin, S, When does a crack grow under mode II conditions? (1986) Int J of Fract, 30 (2), pp. 103-114

[8]

Banks-Sills, L, Arcan, M, An edge-cracked mode II fracture specimen (1983) Exp Mech, 23, pp. 257-261

[9]

Yarema, S Ya, Krestin, G S, (1966) Soviet Materials Science, 2, pp. 7-10

[10]

Libatskii, L L, Kovchik, S E, (1967) Soviet Materials Science, 3, pp. 334-339

← 1 2 →