Predicting fatigue: Nanocrystals reveal damaged material
Thursday, November 29, 2012 - 13:30
in Physics & Chemistry
A small crack in a metal wheel caused Germany's worst-ever rail accident—the 1998 Eschede train disaster. The problem: it was practically impossible to detect damage of that nature to a metal by inspecting it externally. But now scientists have succeeded in making material fatigue visible. They designed new synthetic materials that emit light to report high mechanical stress.