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← HistoryWhich outcome occurred in 18th-century ship timbers that underwent prolonged cyclical submersion near the waterline?
A)Increased structural delamination rate✓
B)Enhanced longitudinal bending strength
C)Reduced susceptibility to biofouling
D)Improved resistance to saltwater ingress
💡 Explanation
Cyclical submersion induced Moisture Fatigue, because repeated wetting and drying caused wood fibers to expand and contract. This weakened the wood's internal bonds, therefore promoting delamination earlier than continuous submersion, rather than consistently reinforcing the beam.
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