Advanced Structural Analysis/Part I - Theory/Failure Modes/Fatigue/Crack Initiation/Loading


 * 1) Introduction
 * 2) /Influence of Mean Stress/
 * 3) /Load Spectra/

=Introduction=

Fatigue life is influenced by virtually every thinkable aspect of the applied loading history, such as:


 * Stress amplitude
 * Mean stress
 * Loading frequency
 * Waveform
 * Loading direction
 * Combined effect of complex stress filed
 * Chronology

The effect of some of these influences can be quantified with fairly good accuracy whilst the effect of other influences must be regarded in a more qualitative sense.