Using the finite element method for statistical fatigue strength prediction
Abstract
A statistical model of fatigue fracture is considered which is based on applications of the 'weak link' theory in a threedimensional formulation. The convergence of statistical fatigue strength prediction is demonstrated in the case where the finite element method is used to estimate the stressed state. The quantitative characteristics of convergence in terms of probability are repeated in the calculation of quantile fatigue curves. For sufficiently dense finite element grids, the error in the calculation of fatigue curves is practically independent of the fatigue life.
 Publication:

Problems of the Strength and Fatigue of the Elements of Aircraft Structures
 Pub Date:
 1990
 Bibcode:
 1990psfe.rept...89D
 Keywords:

 Fatigue Life;
 Finite Element Method;
 Load Distribution (Forces);
 Materials Tests;
 Statistical Analysis;
 Interpolation;
 Prediction Analysis Techniques;
 Stress Analysis;
 Structural Mechanics