White Paper
Key Criteria to Prevent Material Fatigue
Prevent material fatigue by examining low- and high-cycle fatigue, assessing their impact on joint design, and applying strategies to mitigate risks.
Material fatigue, particularly metal fatigue, is the gradual degradation of a material due to cyclic stress levels below its tensile strength limit. It can be divided into:
- Low-cycle fatigue: fewer than 10,000 cycles with stress amplitudes surpassing the yield point, causing significant plastic deformation
- High-cycle fatigue: more than 100,000 cycles with stress levels typically below the yield point, resulting primarily in elastic deformation
Low-cycle fatigue is less critical for joint design, but high-cycle fatigue is crucial, especially when dynamic forces are involved.
Key Insights
This white paper explores critical insights into engineering applications, focusing on the effects of cyclic loading. This phenomenon can lead to the loss of joint preload, resulting in the potential loosening or breakage of components over time.
