Tensile failure of unidirectional composite materials

Influence of corrosion damage on fatigue crack initiation

The influence of previous corrosion on fatigue crack initiation has been determined. Cylindrical specimens and flat specimens with a central hole of the aluminium alloy T075-T6 were corroded in a 3.5 % NaC1 solution. The cylindrical specimens were tested under constant amplitude loading while for the specimens with a central hole a block...

Influence of residual compressive stresses upon the fatigue strength of notched and unnotched 7079 specimens

This investigation is a comparative study of different types of mechanical surface treatments with the objective of achieving residual compressive stresses at the surface of the test specimen. The fatigue behaviour of these treated specimens in constant amplitude tests and programme tests is dealt with. The benefit of the various treatments for...