{
  "generated_at": "2026-07-04T00:18:53+00:00",
  "model": "studio",
  "site": "severe",
  "variant": "doorframe",
  "method": "CalculiX S3 shell *BUCKLE on the corner-network mid-surface; three genuine refinement levels (subdivision depths 3/4/5); geometric extrapolation of the from-above-converging mode-1 sequence",
  "levels": [
    {
      "tag": "-ts200",
      "target_size_mm": 200.0,
      "nodes": 6347,
      "cases": {
        "snow_balanced": 5.08831,
        "wind_uplift_main": 36.14567
      },
      "modes": {
        "snow_balanced": [
          5.08831,
          6.622509,
          6.84312,
          6.98996,
          7.207979,
          7.324958
        ],
        "wind_uplift_main": [
          36.14567,
          47.61987,
          50.47752,
          60.8717,
          75.90606,
          124.6884
        ]
      },
      "source": "reports/studio/shell-buckling-severe-doorframe-ts200.json"
    },
    {
      "tag": "-ts100",
      "target_size_mm": 100.0,
      "nodes": 25047,
      "cases": {
        "snow_balanced": 4.020478,
        "wind_uplift_main": 23.04787
      },
      "modes": {
        "snow_balanced": [
          4.020478,
          5.412481,
          5.641687,
          5.758267,
          5.974355,
          6.188708
        ],
        "wind_uplift_main": [
          23.04787,
          24.65447,
          26.42717,
          28.91749,
          35.39305,
          37.96747
        ]
      },
      "source": "reports/studio/shell-buckling-severe-doorframe-ts100.json"
    },
    {
      "tag": "-ts50",
      "target_size_mm": 50.0,
      "nodes": 99503,
      "cases": {
        "snow_balanced": 3.498275,
        "wind_uplift_main": 11.23232
      },
      "modes": {
        "snow_balanced": [
          3.498275,
          4.92119,
          5.180646,
          5.236482,
          5.506812,
          5.544671
        ],
        "wind_uplift_main": [
          11.23232,
          12.31916,
          16.9162,
          18.4971,
          19.89864,
          19.99755
        ]
      },
      "source": "reports/studio/shell-buckling-severe-doorframe-ts50.json"
    }
  ],
  "extrapolation": {
    "snow_balanced": {
      "mode1_sequence": [
        5.08831,
        4.020478,
        3.498275
      ],
      "nodes_sequence": [
        6347,
        25047,
        99503
      ],
      "diffs": [
        -1.0678320000000001,
        -0.5222029999999998
      ],
      "ratio": 0.489031046082155,
      "limit": 2.998492229639554,
      "note": null
    },
    "wind_uplift_main": {
      "mode1_sequence": [
        36.14567,
        23.04787,
        11.23232
      ],
      "nodes_sequence": [
        6347,
        25047,
        99503
      ],
      "diffs": [
        -13.097800000000003,
        -11.81555
      ],
      "ratio": 0.9021018797049885,
      "limit": -97.64443710859794,
      "note": null
    }
  }
}