Which risk disproportionately increases in pretensioned concrete beams subjected to cyclic loading exceeding the concrete's endurance limit?

💡 Explanation

When concrete exceeds its endurance limit under cyclic loading, microcracks initiate and propagate at the concrete-strand interface because of fatigue, leading to progressive debonding of the prestressing strands. Therefore, debonding results, rather than shear, creep, or alkali-silica reactions each stemming from different degradation pathways.

• Which outcome occurs in a MOSFET-based high-frequency amplifier circuit when exceeding the gate's maximum voltage due to electrostatic discharge?
• Which risk increases substantially when a single-phase rectifier circuit lacks sufficient reservoir capacitance?
• Which risk increases in cryogenic pumps during sudden warm-up?
• Which consequence results when oversampling the received signal in coherent optical receivers?
• Which outcome results when a vapor-compression refrigeration circuit experiences inefficient heat dissipation at the condenser?
• Which consequence results when over-voltages induce flashover inside switchgear circuits?