Metal Fatigue

kolibri282

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Aug 2, 2009
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Very nice example of a fatigue crack. This is why it is important to regularly check metal parts subject to alternating stresses, even when the stress amplitude may be small. In case of doubt use a dye test.
210512181125-03-memphis-crack-hernando-de-soto-bridge-exlarge-169.jpg



https://edition.cnn.com/2021/05/18/us/memphis-bridge-employee-fired/index.html

Fortunately nobody was hurt. A bit more on the subject here:
https://www.rotaryforum.com/threads...accidents-involving-fatigue-fracture.1146101/
 
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