Tim Hunter Energy Based Fatigue from stress testing Watch Video
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Description: Understanding the fatigue of metals is critical in designing safe, reliable structures.Metal fatigue was first discovered in the 1850s when railroad axles would break for unknown reasons.This was the first time in human history that a mass produced item (train axles) underwent repetitive loading (carrying coal).The first attempt to understand this phenomena used constant amplitude loading to develop the Stress-Life curve.Later, in the 1950s and 1960s, in order to develop lightweight stru
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