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← HistoryWithin Inca suspension bridges, which failure mode accelerated when daily thermal cycling weakened plant fiber?
A)Anchorage point tensile rupture✓
B)Cable strand abrasive wear
C)Decking plank shear fracture
D)Tower foundation seismic instability
💡 Explanation
Anchorage rupture accelerated due to thermal relaxation because temperature fluctuations induced cyclical stress which fatigued the plant fiber through creep until it underwent catastrophic tensile failure; therefore, anchor failure is the root issue, rather than deck shear only impacting usability.
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