In this video excerpt from NOVA's "Making Stuff: Stronger" , host and New York Times technology columnist David Pogue visits DuPont™, where Kevlar® was invented. After learning how this bulletproof ...

Back in April 2015, my CW column focused on the two ASTM standardized test methods used for measuring the through-the-thickness, or interlaminar, tensile strength of composite laminates. Despite their ...

The strength of some internal threads is more sensitive to tap diameter than previously thought. • Cold-formed threads are no stronger than cut threads when holes are correctly sized. • Cut threads ...

What is a Tensile Test? A tensile test pulls (or stretches) a sample and, as a result, the extensibility/elongation and tensile strength properties are measured in ...

Compared to general structural steels, high tensile strength steel has increased strength making it ideal for the automotive industry where environmental problems and demands for collision safety are ...