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 ...

Metals fatigue failures occur when structures are subjected to high stress over an extended period of time. They cause metals to fail at a stresses much lower than they can normally withstand. The ...

Things don’t fall from the sky without a damn good reason. US lawyers Baum Hedlund, who specialize in litigation concerning transport accidents, lists human errors as the main reasons (53 percent) for ...

(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, ...

Engineers have identified a fundamental deformation mechanism that can be leveraged to greatly enhance the fatigue properties of metals, opening the door to a new strategy for designing ...

RAILWAY AGE, JANUARY 2022 ISSUE: Dangerous fatigue cracks develop in sound steel. Here’s how. Welcome to “Timeout for Tech with Gary T. Fry, Ph.D., P.E.” Each month, we examine a technology topic that ...

For example, every broken railcar wheel rim that I have examined triggered from a fatigue crack defect—usually substantially larger than one inch in dimension. In some cases, multiple large fatigue ...

During an experiment designed to analyze how metals perform under repeated stress, researchers at Sandia National Laboratories saw something unexpected – a piece of metal that had cracked began to ...

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 ...