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Stress-Strength Interference |
This example compares the stress-strength interference results.
Reference Case
The data set is from Example 5.3 on page 129 in the book Practical Reliability Engineering by O’Connor and Kleyner, Wiley, 2012.
Data
The stress (load) is a lognormal distribution with Ln-Mean = 1.12 and Ln-Std = 0.243. The strength is a 3-parameter Weibull distribution with Beta = 1.69, Eta = 6.67, and Gamma = 3.2.
Result
The book used simulation to get the result. The probability of failure is 1.2%.
Results in Weibull++
In Weibull++, the probability of failure is 1.188%, as shown below.
