Accelerated Testing Course

Course Duration: 3 Days - 8 Hours/day

This two or three day course introduces accelerated testing approaches that can be effectively used to characterize and improve product reliability. It shows the attendees how to develop and optimize test plans for accelerated testing and presents graphical and analytical analysis methods. Models for life testing at constant stress, and for step and time varying stresses will also be discussed. This course includes hands-on exercises using software tools.

Learning Objectives

  • Identify the Theories and Models of Basic Materials Failure and Leading Mechanisms of Failure
  • Identify Engineering-Based Accelerated Life Modeling and Testing
  • Learn to recognize good testing requirements as an input to the Reliability analysis processes
  • Identify needed Evaluation Plan inputs; relationship with the design FMEA
  • Bidirectional traceability and consistency
  • Introduction to Parameter Estimation of Accelerated Life Models

Course Outline

  • Theories and Models of Basic Materials Failure
  • Strength and Deformation of Materials: Elastic Deformation, Plastic Deformation, Fracture, Stress-Strength, Damage-Endurance and Performance-Requirement Reliability Theories, and Agents of Failure
  • Leading Mechanisms of Failure
  • Mechanical Failure Mechanisms: Fatigue, Corrosion, Wear, and Combinations of Mechanisms
  • Electrical Failure Mechanisms: Diffusion, Corrosion, Electromigration, Thermally-Induced Fatigue, and Fatigue Induced by Vibration
  • Engineering-Based Accelerated Life Modeling and Testing
  • Parametric Reliability and Life Models: Single-variable Models and Multi-variable Models
  • Data Gathering: Testing, Field, and Expert Judgment
  • Accelerated Testing to Generate Reliability Data: Types of Tests (ALTS, HALT, Step Stress, Degradation, Varying Stress, ESS), Planning Accelerated Life Tests (to generate complete data or censored data), Performing Accelerated Tests, and Pitfalls of Accelerated Testing
  • Parameter Estimation of Accelerated Life Models
  • Probability Distributions Used in Engineering-based Parametric Models: Normal, Lognormal, Weibull, Exponential distributions and Applications to Parametric Life Models
  • Estimation of Parameters of Life Models (Probability Plotting, Maximum Likelihood Estimation, and Bayesian Estimation)
  • Estimation of Uncertainties: Modeling, Characterizing, and Making Reliability Decisions Under Uncertainty


Who Should Attend

Individuals who need to apply reliability engineering testing in the development process to fielding better products and systems. Design engineers, reliability specialists, test engineers and product/program managers will benefit from the course.

Course Materials

Each participant will receive a seminar manual with breakout exercise case study materials. 

Note: Omnex does not provide copies of standard(s) during training courses, but clients are encouraged to have their own copy.


Participants should have a working knowledge of their organization’s existing New Product Development (or Vehicle Development) process. Participants should have attended a reliability overview training session to understand basic reliability and test analysis.

Upcoming Training