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Minimum safety factor

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Probabilistic design using yield stress as the failure criterion must be accomplished...what minimum safety factor is acceptable?

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Solution Summary

This provides an example of probabilistic design to determine minimum safety factor.

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Cumulative normal distribution is explained, e.g. on web page http://en.wikipedia.org/wiki/Normal_distribution
as Phi[(x-mu)/sigma]
where mu is the center, sigma is the standard deviation, and x (z in your book) is the deviation from the center.
The value of Phi is the probability of the random quantity it describes to be less or equal ...

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