Weibull & Life Data Analysis

Use during qualification or field investigation when failures and surviving units need to be considered together. It helps quantify reliability, compare populations and understand uncertainty.

The scope is tailored to the available evidence. Useful inputs include:

• Failure times and surviving or censored units
• Failure modes and exposure histories
• Sample selection and test or field conditions

SPACEREL assesses data quality and fits distributions such as Weibull, lognormal or exponential where appropriate. Censoring, confidence bounds and mixed failure modes are considered. A distribution shape alone is not treated as proof of a physical mechanism.

Deliverables are agreed before work starts and can include:

• Life-data analysis and model assessment
• Reliability estimates and confidence bounds
• Data limitations and further evidence recommendations