1970-02-01

The Treatment of Randomness in Finite Element Modeling 700842

A linear statistical model is developed for analyzing the statistics of response of static and dynamic finite element models. The model uses the statistical moments of random physical properties (for example, modulus of elasticity) to establish the degree of uncertainty in computed static deflections, frequencies, and buckling loads. A sample problem is included showing the influence of property variance and covariance upon all three areas of interest.

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