** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** Early last year, I was invited to ...

(Santa Barbara, Calif.) -- Take a wire paperclip. Now, bend it back and forth in the same spot 15, maybe 20 times. Chances are the paperclip will have broken before you finish. This is due to what's ...

Fatigue due to repetitive strain is the leading cause of failure in metal components and structures, but new research shows how crystalline structures called nanotwins can slow the accumulation of ...

A typical microstructure (grain structure at the micron scale) of metallic material. (Courtesy: J Stinville) The tiniest defects in a metal can cause it to fail, but predicting when this so-called ...

The contents have been developed as course notes for training courses presented to engineers who need to apply fatigue knowledge in engineering design, fatigue testing and failure investigation.

Dr. Gary Fry is the Vice President of Fry Technical Services, Inc. He has 30 years of experience in research and consulting on the fatigue and fracture behavior of structural metals and weldments. His ...

Each winter, the familiar grey haze settles over Indian cities, and with it comes more than just a scratchy throat or watery eyes. Poor air quality today carries a dangerous mix of toxic heavy metals, ...