The Theory and Application of
Arrhenius Methodology in EQ Calculations
Participants in the training will leave
with an understanding of the history of Arrhenius Methodology and how to apply the
Methodology in Environmental Qualification Calculations. Proposed agenda:
Arrhenius Method Overview
Genesis of the Arrhenius Model
Regulatory and application history in EQ programs
Determination of Activation Energies
Test Methods
Statistical Analysis
Activation Energy (Ea) Selection Criteria
Multiple available activation energies?
Safety Function Stressors v. Test Parameters Qualified Life
Final Selection Guidelines
Examples
Aging Analyses
Definitions
Stressors, including other than thermal
Relationship between a material life line and qualified life determined by pre-aging
Qualified Life Equation Derivation
Accident Degradation Equivalency Equation Derivation
Outputs from aging analysis
Example Problems
Reading a Bill of Materials and selecting vulnerable parts
Analyzing safety function of vulnerable parts
Considering Component Energization
Precautions when using a life limiting component
Writing conclusions
