Combined Visibility and Surrounding Triangles Method for Simulation of Crack Discontinuities in Meshless Methods

Table 4

𝑓(𝑎/𝑊) for surface loaded specimens [23].

Single edge notched tension (SENT) panel	(2𝑊/𝜋𝑎)tan(𝜋𝑎/2𝑊)0.752+2.02(𝑎/𝑊)+0.37(1−sin(𝜋𝑎/2𝑊))^3cos(𝜋𝑎/2𝑊)
Middle tension (MT) panel	1−0.025(𝑎/𝑊)^2+0.06(𝑎/𝑊)^4sec(𝜋𝑎/2𝑊)
Double edge notched tension (DENT) panel	1.122−0.561(𝑎/𝑊)−0.205(𝑎/𝑊)^2+0.471(𝑎/𝑊)^3−0.190(𝑎/𝑊)^41−𝑎/𝑊