Which risk increases when excessive force is applied during tensioning of prestressing strands in concrete beams?

💡 Explanation

When excessive force is applied, strain hardening cannot occur adequately leading to micro-cracks because the material's yield strength is exceeded, causing brittle fracture in the strands. Therefore brittle fracture increases rather than debonding, creep, or compressive failure, which result from lower forces or different environmental factors.

• Which outcome occurs when exceeding the grinding wheel's Surface Feet per Minute (SFM) rating during precision bearing race grinding?
• Which disadvantage arises when post-tensioned concrete bridge decks experience excessive chloride ion penetration?
• Which risk increases when tendon anchorage fails following concrete pour?
• Which consequence results when rapid actuator cycling in a hydraulic robotic arm causes transient pressure drops?
• Which risk increases when welding rebar cages without preheating in cold weather concrete pours?
• Which risk increases when Kalman filter sensor fusion estimates in robotics degrade due to unexpected dynamics noise?