Quick Answer
Calculate Subsea Jumper Fatigue Life Predictor (DNV-RP-F105 Based)
Calculator
Result Interpretation
Subsea Jumper Fatigue Life Predictor (DNV-RP-F105 Based) Calculator computes Fatigue Life Predictor (Dimensionless) in dimensionless using the defined engineering formula and the input values provided.
Worked Example
Verified calculation
Given:
- Stress Range = 100000000
- S-N Curve Slope (m) = 3
- S-N Curve Intercept (log scale) = 1000000000
- Design Fatigue Factor = 1
- Stress Concentration Factor = 2.5
- Environmental Correction Factor = 0.85
Expected Result:
- Fatigue Life Predictor (Dimensionless) = 1.6757672110742
Engineering Interpretation:
Under the given input conditions, the calculated result is: Fatigue Life Predictor (Dimensionless) = 1.6757672110742 dimensionless.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.
Formula / Method
Dimensionless = pow((design fatigue factor * log scale) / (stress range * stress concentration factor * environmental correction factor), 1.0 / m)Formula family: formula_subsea_subsea_jumper_fatigue_life_predictor_dnv_rp_f105_based
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| stress_range | Stress Range | INPUT | Stress Range |
| stress_concentration_factor | Stress Concentration Factor | INPUT | Stress Concentration Factor |
| environmental_correction_factor | Environmental Correction Factor | INPUT | Environmental Correction Factor |
| design_fatigue_factor | Design Fatigue Factor | INPUT | Design Fatigue Factor |
| sn_curve_intercept | S-N Curve Intercept (log scale) | INPUT | S-N Curve Intercept (log scale) |
| sn_curve_slope | S-N Curve Slope (m) | INPUT | S-N Curve Slope (m) |
| fatigue_life | Fatigue Life Predictor (Dimensionless) | OUTPUT | Fatigue Life Predictor (Dimensionless) |
Calculation Steps
- Enter the stress range in Pa.
- Enter the stress concentration factor in dimensionless.
- Enter the environmental correction factor in dimensionless.
- Enter the design fatigue factor in dimensionless.
- Enter the s-n curve intercept (log scale) in Pa.
- Enter the s-n curve slope (m) in dimensionless.
- Step 1: Compute fatigue life predictor (dimensionless).
- Read the fatigue life predictor (dimensionless) (dimensionless) from the results.
Engineering Summary
Calculate Subsea Jumper Fatigue Life Predictor (DNV-RP-F105 Based)
Frequently Asked Questions
What does this calculator calculate?
The Subsea Jumper Fatigue Life Predictor (DNV-RP-F105 Based) Calculator estimates Fatigue Life Predictor (Dimensionless) based on the input parameters you provide
Why is stress range important in this calculation?
stress range is directly proportional to fatigue life predictor (dimensionless). When you enter stress range in Pa, the calculator uses it in the engineering formula to compute the output
How should I interpret the result fatigue life predictor (dimensionless)?
The calculator outputs fatigue life predictor (dimensionless) in dimensionless. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Stress Range (Pa), Stress Concentration Factor (dimensionless), Environmental Correction Factor (dimensionless), Design Fatigue Factor (dimensionless), S-N Curve Intercept (log scale) (Pa), S-N Curve Slope (m) (dimensionless). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
Related Tools
Browse More Tools
Explore the full index of engineering calculators on this vertical site.