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KEVLAR (Aramid) fibers exhibit which unique property among common composite reinforcements?
A{'text': 'Conductive', 'label': 'D'}
B{'text': 'Highest tensile strength-to-weight ratio AND high IMPACT TOUGHNESS — used in body armor and ballistic protection', 'label': 'B'}
C{'text': 'Highest stiffness', 'label': 'A'}
D{'text': 'Brittle failure', 'label': 'C'}
Answer & Solution
Correct answer: B. {'text': 'Highest tensile strength-to-weight ratio AND high IMPACT TOUGHNESS — used in body armor and ballistic protection', 'label': 'B'}
Kevlar (aromatic polyamide) is an organic fiber with strong intermolecular hydrogen bonding. Specific strength rivals carbon. Crucially, it absorbs impact energy through fibril yielding — making it superior for ballistic and impact-prone applications.
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