Which outcome occurred when cast iron crossbow triggers experienced repeated stress?

💡 Explanation

Catastrophic shearing was more likely because internal micro-cracks grew due to fatigue fracture under cyclic loading; therefore sudden failure happened, rather than gradual degradation impacting range or rusting given surface treatments.

• Which outcome regularly occurred on 18th-century sailing ships when brass quadrant scales corroded?
• Which risk to Roman siege artillery increased during sustained firing campaigns?
• Which property determined yield limits as intensive 15th century chinampa farming expanded in Mesoamerica?
• Which outcome occurred if the Chinese manufactured early gunpowder with potassium nitrate rather than sodium nitrate?
• Which outcome resulted when early gunpowder mixtures had inconsistent oxidizer ratios within Song dynasty fire arrows?
• Which structural failure mode became more prevalent in late Roman fortifications lacking consistent maintenance?