Which impact would occur if repeated Roman ballista firing exceeds wooden frame yield strength?

💡 Explanation

Progressive deformation occurs due to creep; ballista frame fibers continually experience elevated stress because the continued impacts exceed yield strength, therefore the frame deforms rather than maintaining its designed geometry under load.

• Which risk increases when bronze tools used to cut limestone blocks exhibit high tin content?
• Which mechanical consequence resulted from rapid catapult arm deceleration upon projectile release during Roman siege warfare?
• Which image artifact arises from imperfect Medieval Islamic astrolabes?
• Which navigational challenge increased significantly for 18th-century sailors crossing oceans, lacking precise longitude knowledge?
• Which consequence arises when a Medieval siege crossbow's tiller weakens?
• Which soil property decreases most rapidly on stepped terraces lacking drainage during monsoon season?