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Effect of Test Data Accuracy on Component Durability Life Prediction in the Weibull Application
Technical Paper
2010-01-0199
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Weibull analysis is widely used in many industries to predict the fatigue life of different components. Three typical Weibull distributions are introduced in this paper. The application of two parameter Weibull distribution in exhaust component fatigue life prediction is presented. Potential issues in component testing are addressed. Criteria are provided to define normal test data, and when replacement of a tested sample is required. The studies demonstrate that Weibull method is effective to predict component R90C90 life. However, data investigation and processing are critical to predict component life properly. The predicted fatigue life may differ by more than an order of magnitude if the sample life data is unrepresentative of the testing and manufacturing conditions.
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Citation
Yang, F., Lee, K., and Cheng, H., "Effect of Test Data Accuracy on Component Durability Life Prediction in the Weibull Application," SAE Technical Paper 2010-01-0199, 2010, https://doi.org/10.4271/2010-01-0199.Also In
Reliability and Robust Design in Automotive Engineering, 2010
Number: SP-2272; Published: 2010-04-13
Number: SP-2272; Published: 2010-04-13
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