ISBN : 979-10-97287-07-8

Collection : Reliability in practice

Edition : CAB Innovation

Abstract

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.

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.).

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

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.

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

André Cabarbaye

A senior expert in operational safety, this book has been written by the CEO of Cab Innovation, a company which develops and markets optimisation and reliability software. The author of numerous scientific papers during his time at the French National Centre for Space Studies (CNES), he has set up operational safety groups in the Occitanie region of France and on LinkedIn.