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← HistoryWhich consequence results when timbers of an 18th-century ship experience cyclical loading during heavy seas?
A)Increased cathodic corrosion rate
B)Reduced ballast keel displacement
C)Progressive structural fatigue cracking✓
D)Elevated centerboard hydrodynamic resistance
💡 Explanation
Cyclical loading causes fatigue cracking because stress concentrations at defects promote crack initiation which then propagates through the timber. Therefore progressive structural fatigue cracking is present, rather than corrosion, displacement, or purely hydrodynamic effects.
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