Application Examples for ALTA

ALTA for accelerated life testing data analysis
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10.1.6 ♦ 24-Oct-2016

 

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ReliaSoft's ALTA accelerated life testing data software provides an extensive array of tools to help you understand and communicate how a product will perform over time. Some of the many useful applications include the ability to:

These examples demonstrate some of the types of analyses you can perform with this application. For additional product documentation, including the Quick Start Guide, visit the Synthesis eDocs & ePubs Library.

Example 1:

Voltage Step-Stress

An electronic component is subjected to a voltage stress, in stepwise increments. The objective of this study is to determine the B10 life and the mean life (often called "mean time to failure," MTTF or MTBF) of these components at the normal use stress level.

Example 2:

Demonstrating the B10 Life

An electronic component is put on an accelerated test using three different (constant) temperature stress levels with the objective of demonstrating B10 life with a specified confidence level. In this study, the activation energy and acceleration factors are also computed.

Example 3:

Accelerated Degradation Analysis

A chemical solution (e.g., ink formulation, medicine, etc.) that degrades with time is studied. A quantitative measure of the quality of the product is utilized and that measure is tracked through an accelerated degradation scheme over time to determine the shelf life of the product. The product is considered failed (or out of compliance) if that quantitative measure falls below a certain value. In this study, although none of the specimens fail, data concerning their degradation is utilized for subsequent analysis.

Example 4:

Automotive Part Test

Multiple stresses are applied simultaneously to a particular automotive part in a step-stress method. In this scenario, the stresses are quantified in terms of a "percentage stress" as compared to typical stress levels (or assumed field conditions). The test objective is to estimate the B1 life for the part (i.e., time at which reliability is equal to 99%) at the typical operating conditions (i.e., Stress=100%), in miles.

Example 5:

Using Indicator Variables

A sample of electronic components are subjected to a quantitative accelerated life test in which three stress types are applied to the units. The stress types include temperature, voltage and a third indicator variable to describe whether the units are operated continuously or turned on and off. The general log-linear model is used to analyze the data set for this test.

Example 6:

Stability / Shelf Life Study

A consumer product (e.g., a mouthwash, shampoo, etc.) is made up of three main ingredients (ingredients A, B and C), that have a characteristic (e.g., concentration) that may or may not change with time. This example looks at data obtained during a 12 month test period to predict the percent out of compliance after 24 months, as well as the behavior of each characteristic over time.

Example 7:

Accelerated Life Test Plans

A reliability group in a semiconductor company is planning an accelerated test for an electronic device. This example demonstrates how to plan such a test using ALTA's Accelerated Life Test Plans utility.

Example 8:

Multiple Time-Dependent Stresses

The cumulative damage model allows you to analyze accelerated life testing data with up to eight time-dependent stresses. In this example, we consider such a case and look at how to create stress profiles in which stress is a function of time.

Weibull++ Reliability Life Data Analysis ALTA Accelerated Life Testing Data Analysis DOE++ Experiment Design and Analysis RGA Reliability Growth and Repairable System Analysis BlockSim System Reliability and Maintainability Analysis RENO for Risk Analysis via Discrete Event Simulation Lambda Predict Reliability Prediction Xfmea FMEA and FMECA RCM++ Reliability Centered Maintenance MPC MSG-3 Maintenance Program Creation XFRACAS Web-based FRACAS Orion eAPI Web-based Asset Management ALTA Accelerated Life Testing Data Analysis BlockSim System Reliability and Maintainability Analysis DOE++ Experiment Design and Analysis MPC MSG-3 Maintenance Program Creation Lambda Predict Reliability Prediction RCM++ Reliability Centered Maintenance RENO for Risk Analysis via Discrete Event Simulation RGA Reliability Growth and Repairable System Analysis Weibull++ Reliability Life Data Analysis Xfmea FMEA and FMECA XFRACAS Web-based FRACAS Orion eAPI Web-based Asset Management ALTA Accelerated Life Testing Data Analysis BlockSim System Reliability and Maintainability Analysis DOE++ Experiment Design and Analysis MPC MSG-3 Maintenance Program Creation Lambda Predict Reliability Prediction RCM++ Reliability Centered Maintenance RENO for Risk Analysis via Discrete Event Simulation RGA Reliability Growth and Repairable System Analysis Weibull++ Reliability Life Data Analysis Xfmea FMEA and FMECA XFRACAS Web-based FRACAS Orion eAPI Web-based Asset Management    ReliaSoft.com Footer

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