Fatigue life prediction. Notion of endurance curve
Fatigue of continuous fiber reinforced composite materials

The growing use of high-performance composite materials is undoubtedly due to their exceptional fatigue resistance. Even lighter than aluminum alloys, they are significantly better than the latter when subjected to cyclic loads.

As a criterion, we usually evaluate the ratio σ_D/R_m of the endurance limit (or fatigue limit) σ_D to the tensile strengthR_m.

The most widely used criterion for assessing the service life of materials is the S-N (Stress-Number of cycles) endurance curve. The principle is simple: it involves plotting the applied stresses (stresses, strains, amplitude of stresses or strains, etc.)...