The National Transportation Safety Board (NTSB) has cited evidence of "metal fatigue" as a contributing factor in the engine failure of a Southwest flight that made an emergency landing and resulted ...

** 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 life is a key concern in welded-steel frames for mobile equipment that experience large and varying dynamic loads. For engineers who design welded-steel structures subject to dynamic loading, ...

Achieving high fatigue strength in the 3D-printed NTD-Al alloy (AM NTD-Al). (A) Number of cycles to failure plotted against the maximum stress of AM NTD-Al, compared with other reported 3D-printed ...

Johns Hopkins University researchers detail a new method for testing metals at a microscopic scale. The research exposes the origins of crack initiation in metals and unravels a method to prevent ...