Two-Dimensional Stress Intensity Factor Analysis of Cracks in Anisotropic Bimaterial

Figure 2

Three-geometric-node quadratic elements used to approximate the uncracked boundary and the crack for two-dimensional problems.

(a) Discontinuous quadratic element of Type I

(b) Crack surface quadratic element of Type II

(c) Discontinuous quadratic element of Type III

(d) Discontinuous quadratic element of Type IV

(e) Crack tip quadratic element of Type V