Material Fatigue
From Design+Encyclopedia, the free encyclopedia on good design, art, architecture, creativity, engineering and innovation.
Material Fatigue
Material Fatigue is a process where a material slowly weakens when it faces repeated small forces or movements over time, even if these forces are much lower than what would break the material in one go. In engineering analysis, designers use special graphs called S-N curves to predict how many cycles a material can handle before it starts to crack. These curves help designers choose the right material and shape for parts that will move or vibrate a lot, like chair legs, bridges, or hinges. Paying attention to sharp corners or surface scratches is important, because these spots can make fatigue happen faster. By understanding where stress builds up, designers can make safer and longer-lasting products.
cyclic loading, S-N curve, crack initiation, stress concentration
CITATION : "Kevin Green. 'Material Fatigue.' Design+Encyclopedia. https://design-encyclopedia.com/define/material-fatigue?E=482472 (Accessed on October 14, 2026)"
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