ZeqAirframeFatigue

Airframe structural fatigue analysis. Miner's rule accumulation with R(t)-weighted load spectra, crack growth rate (Paris law), remaining flight cycles.

Endpoint	POST /api/aviation/fatigue
Auth	api-key
Rate limit	10/min
Category	aviation

Parameters

Name	Type	Required	Description
loadSpectrum	array	Yes	Flight load history [{ cycles, stressRange_MPa }].
material	string	No	'al-7075', 'al-2024', 'ti-6al-4v', 'cfrp'.
crackLength_mm	number	No	Current crack length if known.

Returns

{ damageAccumulation, remainingCycles, crackGrowthRate_mm_cycle, inspectionInterval, zeqond }

Example

curl -sS -X POST \
  -H "Authorization: Bearer zsm_..." \
  -H "Content-Type: application/json" \
  -d '{
  "loadSpectrum": [],
  "material": "<material>",
  "crackLength_mm": 0
}' \
  "https://zeqsdk.com/api/aviation/fatigue"

This protocol is a named building block — one of the operations you compose inside a state contract. Call it directly with the request above, or invoke it from a contract that fires on your machine's clock. Browse the whole library at GET /api/protocols; fetch this one at GET /api/protocols/zeq-airframe-fatigue.