Description
Return supplied fatigue-cycle accumulation.
Material and fixture mechanics depend on loading mode, geometry, reference state and constitutive assumptions. A secant modulus, Euler load or spring-energy term is a limited model contribution rather than validation of structural capacity, fatigue life or clinical device suitability.
Return supplied fatigue-cycle accumulation.
When to use this tool
Use Bench Fatigue Cycle Frequency Duration when evaluating the stated benign bench mechanical or timing term.
How to use the tool and how it works
- Enter frequencyHz, durationSeconds, initialCycles. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read additionalCycles, totalCycles. Use the output convention below.
Return supplied fatigue-cycle accumulation. Require frequencyHz and durationSeconds >= 0, initialCycles nonnegative whole; additionalCycles = frequency*duration, totalCycles adds initial.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| frequencyHz | Frequency Hz | Required. Finite number; minimum 0. |
| durationSeconds | Duration Seconds | Required. Finite number; minimum 0. |
| initialCycles | Initial Cycles | Required. Safe integer; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| additionalCycles | frequencyHz*durationSeconds, allowed to be fractional rather than an observed cycle count. | Required. Finite number. |
| totalCycles | Total Cycles | Required. Finite number. |
{
"input": {
"frequencyHz": 2,
"durationSeconds": 1000,
"initialCycles": 100
},
"output": {
"additionalCycles": 2000,
"totalCycles": 2100
}
}Limitations and assumptions
- Additional cycles may be fractional; frequency is assumed constant and actual cycles, fatigue damage and service life are not inferred.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use verified material properties and an appropriate complete structural/test model with qualified engineering assessment for practical loading, lifetime or device decisions.
References
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