Statistical Design of Fatigue Experiments

Waloddi Weibull

Journal of Applied Mechanics · 1952 · 43 citations · 0 references

Concepts

Abstract

Abstract An analytical expression connecting fatigue lives with applied stresses, and methods for computing the values of its parameters from experimental data are given. Formulas for estimating the uncertainty of computed parameter values, caused by scatter of loads and fatigue lives, for optimum distribution of specimens, and for optimum choice of stress levels, are deduced. Testing time and costs may be reduced by more than 40 per cent by using the formulas.