Figure 6
From: Location, location & size: defects close to surfaces dominate fatigue crack initiation
Plot of the crack growth rates against the maximum stress intensity factors for: (a) The KImax of internal cracks calculated using the Murakami empirical equation (Eq. 2 shown in red). (b) The KImax of internal cracks calculated using the Local Stress method (Equation 3, shown in red). (c) Schematic illustration of the three main tendencies observed depending on the environment and the position of the pore.
