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420 Fracture Mechanics: Fundamentals and Applications
FIGURE 9.25 Reference stress geometry factor as a function of crack front position and hardening exponent
for a semielliptical surface crack in a flat plate (see Figure 9.2 for a definition of dimensions and the angle f).
FIGURE 9.26 Correlation between the reference stress geometry factor and the hardening exponent for a
semielliptical surface crack in a plate subject to a membrane stress.
