Implementation of accelerated life testing (Broché)

Implementation of accelerated life testing

Stress increases the risk of failure and should be taken into account in reliability models.

However, any resulting complexity is an asset in the field of endurance or reliability tests conducted to demonstrate the ability of a product to perform its role. It can be used to reduce the duration of testing and/or the number of test objects by increasing stress levels (temperature, vibration, humidity, etc.).

Tests should, however, reveal the same failure or degradation phenomena under accelerated and nominal conditions, and the acceleration distributions allowing the transition from test results to operational performance should be known or characterised by the tests themselves.

The design of tests and then their implementation in accordance with various strategies can be optimised to reduce their cost.

However, existing standards (EN 62506, etc.) provide few precise recommendations on their application (number of objects to be tested, the types and conditions of stress to be applied, the theoretical models to be used, the value of acceleration distribution parameters, etc.).

This educational book on the implementation of accelerated life testing therefore explains its theoretical foundations and offers a practical application guide which covers state-of-the-art thinking on design techniques and optimal planning of tests, the results of which also constitute an input for health monitoring and predictive maintenance.