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← HistoryWhich consequence resulted when medieval rope bridge cables experienced excessive cyclic loading?
A)Reduced catenary curve steepness
B)Increased vibrational damping capacity
C)Faster structural relaxation effects
D)Accelerated fatigue crack propagation✓
💡 Explanation
Accelerated fatigue crack propagation occurred because cyclic stress concentrated at flaws encouraged crack nucleation and growth. Therefore, the cable's lifespan was shortened, rather than its capacity for vibration damping increasing, under repeated stress.
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