The Simulation of Local Stress-Strain Behaviour with Application to Fatigue Analysis.
AERONAUTICAL RESEARCH LABS MELBOURNE (AUSTRALIA)
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Substantial improvement in fatigue life prediction has been effected by the introduction of cyclic stress-strain concepts. A procedure that incorporates these in a simulation of local stress and strain from nominal load using Neuber notch analysis is described in relation to its application to the fatigue analysis of in-service histories. In the present simulation the non-linear stress-strain and Neuber equations are solved numerically rather than by piecewise approximations. For the long load histories occuring in practice this improves numerical stability.
- Numerical Mathematics