What is meant by static fatigue?
The term "static fatigue" refers to the analysis and simulation of material fatigue under constant or nearly constant load over an extended period. Unlike cyclic fatigue, where the load changes repeatedly, the load in static fatigue remains largely constant. This phenomenon is particularly relevant for components that are exposed to high loads permanently.
Typical software functions in the area of "static fatigue":
- Load case simulation: Creation and analysis of scenarios with constant loads over long periods.
- Creep analysis: Calculation of time-dependent deformation under constant load.
- Stress relaxation: Simulation of stress reduction under constant deformation.
- Lifetime prediction: Forecast of expected service life under static loading.
- Material modeling: Integration of time-dependent material properties for precise long-term analyses.
- Temperature influence analysis: Consideration of temperature effects on long-term behavior.
Examples of "static fatigue":
- Analysis of bridge girders under self-weight and permanent traffic load.
- Simulation of creep behavior in concrete structures of high-rise buildings.
- Investigation of stress relaxation in pre-stressed bolt connections.
- Lifetime prediction for pressure vessels under constant internal pressure.
- Analysis of deformation in plastic components under permanent load.
- Investigation of long-term behavior of seals in chemical plants.