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    Engineering Failure Analysis




    I'm currently writing a report in which I would like to discuss the potential for failure of several pipelines. If the chance of failure per pipeline is 95% in 25 years, and there are three pipelines of concern, what would be the minimum number of years at which there would be a 100% chance of failure for any one of the three pipelines?

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    Re: Engineering Failure Analysis


    You will need more information that that provided. Are you assuming random failures due to over stress, wear out due to corrosion or cracking, or some other failure mechanism? What type of failure distribution are you assuming and the parameters associated with that distribution? Random failures would be an exponential distribution. Corrosion or cracks might be Weibull, lognormal, normal or logistic.

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