Estimation of Uncertainties in Sample Results and Their Impact on Reliability Demonstration Tests  
Author Tobias Leopold




Abstract Reliability Demonstration Tests are supposedly easy to plan and a common procedure in product testing. However, assumptions about the failure characteristics of the product must often already be made in the planning of the failure-free test. Faulty planning sometimes has a strong impact on the results of testing. To avoid negative consequences, the uncertainties in the description of the failure behavior must be quantified and their influence must be taken into account to avoid inaccurate predictions of product reliability.


Keywords reliability demonstration test, sample size, test duration, confidence level, Binomial testing, success run, uncertainty, zero failure testing, reliability proof
    Article #:  RQD28-221

Proceedings of 28th ISSAT International Conference on Reliability & Quality in Design
August 3-5, 2023