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Accelerated Life Testing module

Accelerated Life Testing, formerly known as ALTA software, is an advanced module application available in ReliaSoft Weibull++ for accelerated test planning and quantitative accelerated life testing data analysis.

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Accelerated Life Testing module

Accelerated Life Testing, formerly known as ALTA software, is an advanced module application available in ReliaSoft Weibull++ for accelerated test planning and quantitative accelerated life testing data analysis.

The Accelerated Life Testing module provides complete solution for accelerated test planning and quantitative accelerated life testing data analysis.

It supports a complete array of utilities for designing accelerated life tests, evaluating the fit of the model, calculating reliability metrics, generating plots and performing related statistical analyses. Additionally, it provides the life-stress relationships required to analyze accelerated life test data with up to 8 simultaneous stress types, where stress is constant or varies with time.

Key Capabilities:

  • Understand the effects of stresses on product life
    Analyse accelerated life test data with up to 8 simultaneous stress types, where stress is constant or varies with time.
  • Lower development costs with improved designs
    Evaluate your product performance using reliability metrics and analyses. Improve your initial designs based on accelerated life testing data in a variety of available formats and stress models.
  • Gain better insight with nCode GlyphWorks integration
    Import and process signals or time series data from nCode GlyphWorks .s3t files and subsequently utilise the post-process profiles for reliability calculations.
  • Design accelerated tests to achieve desired results
    Complete the most complex accelerated life testing analyses in a clear and user-friendly interface to obtain necessary metrics.
  • Significantly reduce test time and produce more robust designs
    Predict long-term reliability metrics with minimal test time using life data from stress testing.
  • Provide clarity with enhanced reports and plots
    Quickly provide the results, plots and reports you need to support decisions with flexible tools and automation.

See All Functionality

Accelerated life testing data, results and stress profiles

Accelerated Life Testing module provides all the tools and options you will need for accelerated life testing data analysis. It supports all the data types testing conditions would yield. Data can be entered individually or in groups to accommodate larger datasets.

The cumulative damage life-stress model can handle data from tests where the stress varies with time (e.g., a step-stress or ramp-stress profile). You can define and store any number of stress profiles, then easily assign the appropriate profile to each point in a data sheet. Each segment in a profile can be associated with a specific stress value or a time-dependent function. Additionally, it includes Stress Profile Plots for each cumulative damage analysis that shows both the profile and the failures that occurred in each segment.

Accelerated life test planning 

The module supports the complex mathematical models required to design an effective accelerated life test plan. It offers a choice of one-stress or two-stress test planning methods. Based on your inputs about the expected failure behaviour and available test time, it recommends the stress levels to be tested and the most effective allocation of available test units to each level.

Accelerated non-destructive degradation analysis
A folio that analyses degradation data obtained from accelerated non-destructive tests. The result can be used to predict a product’s failure behaviour under various use conditions.

Accelerated destructive degradation analysis
A folio that which analyses degradation data obtained from accelerated tests that destroy the specimen or alter its subsequent performance. The result can be used to predict a product’s failure behaviour under various use conditions.

Life comparisons and stress-strength analysis
Designed for statistical comparison of data sets. The Life Comparison allows you to compare two data sets to determine whether items from the first set will outlast those of the second. The Stress-Strength comparison uses the same statistical approach to determine the probability of failure based on the probability of a specified “stress” data set exceeding a specified “strength” data set.

Monte Carlo simulation
Generate data sets that can be analysed directly in a standard folio. You can also use the SimuMatic® utility to automatically perform a large number of reliability analyses on data sets that have been created via simulation. These simulated data sets and calculated results can be used to perform a wide variety of reliability tasks.

 

Integration with nCode GlyphWorks

You have the ability to import and process signals or time series data from nCode GlyphWorks .s3t files and subsequently utilise the post-process profiles in Accelerated Life Testing module (Weibull++)  for reliability calculations.

Standard vs. PRO Versions

Accelerated Life Testing module provides two versions to support how you analyse data obtained from quantitative accelerated life tests

Accelerated Life Testing – Standard 

This version is intended to be an entry-level tool for the reliability professional interested in basic quantitative accelerated life testing data analysis applications.

  • Life-Stress Relationships supported: Arrhenius, Eyring, Inverse power law, Temp-humidity, Temp-nonthermal.
  • Varying Stresses: data analysis of 1 or 2 stresses that do not vary with time.
  • Cannot analyse data with indicator variables.
  • Monte Carlo Data Generation is only available for supported models.

Accelerated Life Testing – PRO

This version provides advanced capabilities made possible by extensive research and development in complex quantitative accelerated life testing data analysis techniques. 

  • Life-Stress Relationships supported: all of the models available in Standard version as well Generalised Eyring, Proportional hazards, Generalised log-linear and Cumulative damage.
  • Varying Stresses: can analyse data with up to 8 stresses that may vary with time and provides a utility to define and manage stress profiles. Use level stress can also be specified to vary with time.
  • Can analyse data with indicator variables.
  • Monte Carlo Data Generation is available for all models, including those with multiple and/or time-dependent stresses.

    Ready to facilitate your reliability program?