Lifetesting
Lifetesting, in reliability engineering, is the process of evaluating the expected lifetime and reliability of a product or component by observing its performance over time under conditions that simulate or accelerate real-world use. The goal is to estimate time-to-failure, degradation patterns, and overall longevity, to support warranty planning, maintenance schedules, and design improvements.
Accelerated life testing (ALT) is the common method, applying stresses such as higher temperature, humidity, voltage,
Planning emphasizes a well-defined life goal, adequate sample size, appropriate stress levels, and robust failure criteria.
Applications span consumer electronics, automotive parts, aerospace components, and medical devices. Outcomes include mean time to