Kevlar vs. carbon fiber comes down to how a part fails under load. Carbon fiber wins on stiffness and weight, while Kevlar wins where a part must absorb a sudden hit without shattering, as in body armor and protective gear. The Department of Energy reports that carbon fiber composites weigh half as much as steel...Continue Reading

Is Kevlar bulletproof? Kevlar can stop certain bullets, but it does not make someone invincible. Protection depends on bullet type, velocity, and how the material is engineered into armor systems. According to NPR, sales of body armor have soared across the US in recent years, as families across the country look for ways to enhance protection...Continue Reading