Introduction to Fatigue and Durability Fatigue is an important failure mode that needs to be accounted for in product design. Over time, stress cycles can cause cracks to start and grow until structural failure. It is important to understand and predict fatigue to avoid these costly and dangerous failures. This webinar will introduce the fatigue failure mode, illustrate important concepts, and demonstrate ways to predict product life. We will discuss fatigue calculation methods like stress-life (SN), strain-life (EN), and crack growth. nCode software will be used to demonstrate applications of these concepts.