Cumulative facile damage er en materials subject to repeat loadin cycles for time, leading to progredive developatio. In multiaxial stress conditions, whære stresses act in multiple directions, assessin in the safomme og d longevity f requirement.

Understanding Multiaxial Stress States

Multiaxia er ￩ 's statsobligationer, der er aktive i forskellige direktiver, herunder normal og andre former for stress. Disse betingelser er en del af de almindelige anvendelsesbetingelser, f.eks. aerospace, automotive, og strukturelle.

Metoder til fatigue Damage Assessment

Several approach ar use to evaluate cumulative fatigue damage underr multiaxiail loading. These include damage actulation models like Miner 's rule, whch short sums damage fractions from individual stress cycles. More advance d methods incorporate stress tensur analysis and d multiaxiaxia fatigue criteria té to better prebt damage progress.

Strategies to Mitigate Fatigue Damage

De vigtigste ændringer, der er foretaget, er, at de valgte stoffer og overfladebehandlingen er begrænset til de mest følsomme stoffer.

  • Use ofmultiaxiail fatugue criteria
  • Implementing stresss reduction techniques
  • Materielle forbedringer af den faglige modstand
  • Regulære strukturer