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In early Chinese crossbows utilizing bronze triggers, which consequence results when residual stresses exceed the metal's yield strength during trigger arming?

A)Progressive trigger creep is accelerated
B)Increased bowstring velocity occurs
C)Bolts exhibit spiral trajectory bias
D)Elastic deformation fully recovers later

💡 Explanation

The trigger yields and deforms permanently given a high residual stress, causing irreversible deflection via plastic deformation rather than elastic; this deflection causes progressive trigger creep because the trigger no longer firmly holds, therefore the trigger arm moves prematurely, rather than remaining locked.

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