Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
775050 | Engineering Fracture Mechanics | 2013 | 10 Pages |
Fatigue crack growth from an expanded hole is simulated. Expansion and its degree influence are studied using a numerical analysis. Stress intensity factors are determined and used to estimate the fatigue life. Residual stress field is evaluated using a nonlinear analysis. These stresses are superposed with the applied stresses field in order to estimate crack growth with a linear 3-D model.Experimental test are conducted under constant loading. Results of this investigation indicate expansion and its degree are benefit on fatigue life. A good agreement was observed between the FEM analysis and the experimental result.
► Fatigue crack growth from an expanded hole is simulated. ► The influence of expansion and its degree is studied using a numerical analysis. ► Analysis allows determination of SIF, used to evaluate the fatigue life. ► Residual stress field is determined using a nonlinear analysis. ► Stresses are superposed with the applied stresses in order to evaluate crack growth.