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Fig. 10. Fatigue lifetime curves depicting predicted cycles to fracture as a
function of cyclic stress for M. flaccida. Broken portions of curves
are below measured fatigue threshold, To, for which no
crack growth is predicted. Color-coding of curves is as described for
Fig. 9. Approximate water
velocities corresponding to applied stresses are given on the secondary
abscissa. Estimated time to failure, determined as described in the text, is
given on the secondary ordinate.