Two-Dimensional Fracture Mechanics Analysis Using a Single-Domain Boundary Element Method

Table 2

Normalized SIFs for a central slant in an isotropic Brazilian disc subjected to a concentrated load (𝛽=45^∘).

𝑎/𝑅	Atkinson et al. (1982) [42]		Chen et al. (1998) [28]		This study
	𝐾I/𝜎√𝜋𝑎	𝐾II/𝜎√𝜋𝑎	𝐾I/𝜎√𝜋𝑎	𝐾II/𝜎√𝜋𝑎	𝐾I/𝜎√𝜋𝑎	𝐾II/𝜎√𝜋𝑎
0.1	−1.035	−2.010	−1.020	−1.968	−1.018	−1.965
0.2	−1.139	−2.035	−1.116	−1.995	−1.116	−1.992
0.3	−1.306	−2.069	−1.272	−2.036	−1.277	−2.029
0.4	−1.528	−2.100	−1.484	−2.069	−1.492	−2.065
0.5	−1.784	−2.132	−1.737	−2.103	−1.749	−2.098
0.6	−2.048	−2.200	−2.020	−2.148	−2.039	−2.139
0.7	N.A.	N.A.	−2.337	−2.213	−2.364	−2.224