Research Article

Dual Boundary Element Method Applied to Antiplane Crack Problems

Figure 4

The rectangular plate with two identical collinear cracks. Normalised mode III stress intensity factors versus ğ‘Ž / 𝑑 for tip 𝐴 : (a) the analytical results and (b) the present method, and for tip 𝐵 : (c) the analytical solutions and (d) the present method.