Which structural weakness worsens when molecular contamination embrittles spacecraft polymers?

💡 Explanation

Decreased yield strength results when contaminants weaken the polymer's intramolecular force via chain scission. This is Stress Corrosion Cracking because the lower yield allows crack propagation, therefore structural integrity decreases sharply, rather than alternate modulus changes.

• Which risk increases when strain-induced defects alter a perovskite crystal lattice?
• Which consequence results when birefringent material thickness varies in polarimetry?
• Which mechanism explains the increased electrical energy discharge rate from a piezoelectric crystal under resonant mechanical vibrations?
• Which outcome occurs when dissolved molecular oxygen concentration depletes within a marine sediment layer?
• Which mechanism limits maximum drain current through nanoscale MOSFET at high gate voltages?
• Which consequence is observed when stressed polymer films are viewed through orthogonal polarizers?