The fatigue crack propagation behaviors were measured using compact tension and center cracked tension specimens made of polycarbonate, polybutylene terephthalate and polyetheretherketone. Crack propagation rates of these materials were successfully correlated with cyclic stress intensity factor. In addition, we measured and simulated semi-elliptical surface fatigue crack propagation in polycarbonate. The simulation results were in good agreement with experimental, indicating that the fatigue crack propagation behaviors of polycarbonate can predict using the same prediction method for metals.
