Lifetime Assessment
Physics of Failure
Connect materials, geometry and operating stresses to the mechanisms that can limit product life.
Purpose & Benefit
When This Activity Helps
Use for long-life electronics, demanding environments or technologies with limited field history. Mechanism-based assessment helps target design changes and accelerated testing.
Project Information
Typical Inputs
The scope is tailored to the available evidence. Useful inputs include:
- Mission profile and component temperatures
- Materials, geometry and manufacturing information
- Test observations, failure evidence and model parameters
Engineering Approach
How SPACEREL Supports Your Project
SPACEREL identifies plausible mechanisms such as thermomechanical fatigue, corrosion, electromigration and interconnect degradation. Relevant models are selected only where the mechanism and parameter basis are justified. Model uncertainty and the need for test correlation are documented.
Documented Outcomes
Typical Deliverables
Deliverables are agreed before work starts and can include:
- Failure-mechanism map and risk assessment
- Supported lifetime or damage estimates
- Design, material and test recommendations
Reliability Toolkit
Related Calculators
Compare mechanism-specific acceleration using parameters supported by physical evidence.
Arrhenius Acceleration Factor
Calculate Arrhenius thermal acceleration factor and equivalent use time from activation energy, use temperature and stress temperature.
Open CalculatorInverse Power Law Acceleration Factor
Calculate inverse-power-law acceleration factor and equivalent exposure from use stress, accelerated stress and exponent n.
Open CalculatorCoffin-Manson Thermal Cycling Acceleration Factor
Estimate simplified thermal-cycle acceleration from use and test temperature ranges and a Coffin–Manson fatigue exponent.
Open CalculatorMethods & Evidence
Selected References
- IEC Technical Committee 56: Dependability
Select the applicable methods and requirements for the product and programme.
Project Context
Where This Activity Can Help
Explore the relevant lifecycle stages.