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← HistoryDuring a siege, which outcome occurs when a trebuchet consistently targets the same section of a castle wall?
A)Wall breach via stress accumulation✓
B)Localized surface spalling increases
C)Material ablation from wind loading
D)Thermally induced cracking propagates faster
💡 Explanation
Repeated impacts cause fatigue resulting in the reduction of yield strength because microscopic cracks accumulate within the structure, weakening it through stress accumulation. Therefore, a focused assault leads to a breach, rather than gradual surface damage or weather induced failure.
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