Quantify your product’s life characteristics using Accelerated Life Testing. When we conduct ALT we’re quantifying the effect of stress(es) on product life, by realising this effect we can then determine the products life characteristics under different field conditions.

Acceleration Models

There are a wide range of accelerated life testing models available for use. The most appropriate stress is, or combination or stresses are selected by evaluating the product’s end use environment and intended operation.

Some common models for calculating acceleration factor include:

  • Arrhenius
  • Eyring
  • Coffin-Manson
  • Norris-Landzberg
  • Inverse Power Law

When to Perform Accelerated Life Testing

Accelerated Life Tests are ideally performed when the product is nearing it’s final design changes. This ensures that the test is conducted on mass production quality samples and will provide the most accurate results.

What you should consider

You’ll need to consider and provide us with information about the products end use environment, this is effectively the “field stress” level that the unit will nominally encounter. For example, for an electronic device you might go with +25C, 60% RH, along with a particular duty cycle of operation. For a motor you’d most likely look at voltage, power, or current profiles when in use, and base your accelerations around these figures.