Quantum mechanics

Linguistics

Engineering

Philosophy

Stress field

Stress intensity factor

Classification of discontinuities

Pure mathematics

Statistics

Materials science

Stress (linguistics)

Field (mathematics)

Fatigue testing

Energy (signal processing)

Computer science

Mechanical engineering

Physics

Finite element method

Mathematics

Optics

Mathematical analysis

Structural engineering

Intensity (physics)

International Journal of Fatigue

Notched components with complex configurations are normally designed for engineering functional requirements. Geometrical discontinuities generally result into stress concentration and multiaxial stress states and eventually lead to fatigue failure. However, highly efficient methods for notch fatigue analysis of engineering components are still lacking. In this regard, by combining energy criteria with FE simulations, a new concept of energy field intensity (EFI) is proposed and an EFI-based framework is established for notch fatigue analysis of engineering components under multiaxial stress states. Better correlation of model predictions with experimental results of GH4169 and Al 7050-T7451 alloys are provided by the proposed model rather than that by Fatemi-Socie, Sun-Shang and energy criteria.

Energy field intensity approach for notch fatigue analysis