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<a accesskey="3" href="page.php?w=Fatigue_%28material%29&amp;p=2">3.Next</a>
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<p>In <a href="page.php?w=materials_science">materials science</a>, <b>fatigue</b> is the initiation and propagation of cracks in a material due to <a href="page.php?w=Cyclic_stress">cyclic loading</a>. Once a fatigue crack has initiated, it grows a small amount with each loading cycle, typically producing <a href="page.php?w=striation_%28fatigue%29">striations</a> on some parts of the fracture surface. The crack will continue to grow until it reaches a critical size, which occurs when the <a href="page.php?w=stress_intensity_factor">stress intensity factor</a></p><p>
<a accesskey="3" href="page.php?w=Fatigue_%28material%29&amp;p=2">3.Next</a>
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