Metal alloys crack and fail through a mechanism called "fatigue" when repeatedly loaded and strained. While it is well known how to design alloys to withstand static loads and pressures, it is very ...

Combined fires are meant to create a deterrence effect, with strikes “so unrelenting” that no adversary would dare to attack, one commander said.

U.S. plans to blunt a potential large-scale aerial assault in Europe were put to the test this month at training grounds ...