Multiaxial Fatigue Criterion Using Total Strain Energy Parameters Associated with Cumulative Damage Model

The Knowledge of the causes of damage of materials is a priority for design engineers to avoid sudden failure of equipment in service. One of the most important reasons for the failure of materials is fatigue, this phenomenon can be defined as damage to the metal under repeated stress and lower than the yield stress. The main objective of this study is the development of multiaxial fatigue criterion using total strain energy, then validating this proposal by the results of literature and a comparison with another criterion. The majority of the results obtained by our proposal give conservative results. These predicted results are compared with bending-torsion tests and the agreement is found to be fairly good.