second axial moment of area

{
  "id": "NISTq144",
  "unitsml_id": "q:second_axial_moment_of_area",
  "name": "second axial moment of area",
  "names": [
    {
      "value": "second axial moment of area",
      "lang": "en"
    }
  ],
  "short": "second_axial_moment_of_area",
  "type": "derived",
  "dimension": {
    "id": "NISTd57",
    "name": "area moment of inertia",
    "expression": "L4",
    "components": [
      {
        "key": "length",
        "symbol": "L",
        "power": 4
      }
    ],
    "dimensionless": false
  },
  "units": [
    {
      "id": "NISTu185",
      "name": "meter to the power four",
      "symbol": "m⁴"
    }
  ],
  "unit_count": 1,
  "identifiers": [
    {
      "type": "nist",
      "id": "NISTq144"
    },
    {
      "type": "unitsml",
      "id": "q:second_axial_moment_of_area"
    }
  ],
  "references": [
    {
      "type": "informative",
      "authority": "qudt",
      "uri": "http://qudt.org/vocab/quantitykind/SecondAxialMomentOfArea"
    }
  ]
}