Reliability engineering
Weibull Reliability Analyzer
A browser-based tool for plotting failure-time datasets, estimating Weibull parameters, and explaining reliability curves in engineering classes or practical studies.
What It Helps Explain
- Shape betaDistinguish infant mortality, random failures, and wear-out behavior.
- Scale etaConnect the characteristic life parameter to dataset behavior.
- B10 and median lifeTranslate plots into reliability metrics students and engineers can discuss.
- Common mistakesAvoid over-interpreting tiny datasets or mixing unlike failure modes.
Example Dataset
Try entering a small ordered failure-time dataset such as 120, 155, 170, 210, 260, 300, and 390 hours. Compare the fitted curve, estimated beta and eta, and the B10 life. Then ask what engineering story could produce a steeper or flatter slope.
Use in Class
Use the analyzer after a short introduction to reliability and probability plots. Students can enter sample data, interpret the curve, and explain whether the result suggests early-life failures, random failures, or wear-out behavior.