{
  "schema": "c04_separate_quarantined_research_pilot_v1",
  "created": "2026-10-26T03:09:00.597277+08:00",
  "reason": "Eight retained production-mesh attempts: 6.87M-cell candidate passed surface and material-volume gates but retained 262 low-SICN cells and would require ~29.6M P2 DOFs. Continue C04 schema/ID/GPU throughput pilot in a separate quarantine, following the C03 research method; never reinterpret its production gate.",
  "production_protocol_unchanged": true,
  "production_labels_allowed": false,
  "failed_ID_replacement": false,
  "geometry_revision": "Declared v2 1-micron interface alignment; each original CAD and revised CAD retained",
  "solver": "Actual 3D GPU-FEniCSx P2 / exact embedded P1 CUDA GAMG; same constitutive law and discrete pressure caps",
  "mesh": {
    "h_mm": 6,
    "curvature": 64,
    "min_size_mm": 0.5,
    "straight_TET10": true,
    "Netgen": true
  },
  "required_before_research_solve": [
    "Positive Jacobians",
    "One connected structural mesh",
    "Conformal six-node material interfaces",
    "Independent pressure/cap force and moment closure",
    "Native node/cell IDs and parameter identities",
    "Single worker resource limits"
  ],
  "required_after_solve": [
    "True residual < 1e-7",
    "Force/moment and energy gates",
    "Independent half/zero solves",
    "Native consistent pressure/cap RHS identity < 1e-10",
    "Finite original-cell local GP stress and matching IDs"
  ],
  "not_certified": [
    "Production mesh quality",
    "Training release",
    "Local peak-stress convergence",
    "Strength or failure criteria"
  ],
  "cases": [
    {
      "id": "copv_c04r_0000",
      "parent_case_id": "copv_c04_0000",
      "parameters_mm": {
        "inner_radius_mm": 100.0,
        "straight_length_mm": 400.0,
        "dome_depth_mm": 60.0,
        "boss_bore_radius_mm": 15.0,
        "neck_length_mm": 20.0,
        "liner_thickness_mm": 1.0,
        "overwrap_thickness_mm": 3.0
      },
      "split": "quarantined_research_only"
    },
    {
      "id": "copv_c04r_0001",
      "parent_case_id": "copv_c04_0001",
      "parameters_mm": {
        "inner_radius_mm": 90.0,
        "straight_length_mm": 360.0,
        "dome_depth_mm": 54.0,
        "boss_bore_radius_mm": 13.5,
        "neck_length_mm": 18.0,
        "liner_thickness_mm": 0.9,
        "overwrap_thickness_mm": 2.6999999999999997
      },
      "split": "quarantined_research_only"
    },
    {
      "id": "copv_c04r_0002",
      "parent_case_id": "copv_c04_0002",
      "parameters_mm": {
        "inner_radius_mm": 110.0,
        "straight_length_mm": 440.0,
        "dome_depth_mm": 66.0,
        "boss_bore_radius_mm": 16.5,
        "neck_length_mm": 22.0,
        "liner_thickness_mm": 1.1,
        "overwrap_thickness_mm": 3.3
      },
      "split": "quarantined_research_only"
    },
    {
      "id": "copv_c04r_0003",
      "parent_case_id": "copv_c04_0003",
      "parameters_mm": {
        "inner_radius_mm": 100.0,
        "straight_length_mm": 350.0,
        "dome_depth_mm": 60.0,
        "boss_bore_radius_mm": 15.0,
        "neck_length_mm": 20.0,
        "liner_thickness_mm": 1.0,
        "overwrap_thickness_mm": 3.0
      },
      "split": "quarantined_research_only"
    },
    {
      "id": "copv_c04r_0004",
      "parent_case_id": "copv_c04_0004",
      "parameters_mm": {
        "inner_radius_mm": 100.0,
        "straight_length_mm": 450.0,
        "dome_depth_mm": 60.0,
        "boss_bore_radius_mm": 15.0,
        "neck_length_mm": 20.0,
        "liner_thickness_mm": 1.0,
        "overwrap_thickness_mm": 3.0
      },
      "split": "quarantined_research_only"
    },
    {
      "id": "copv_c04r_0005",
      "parent_case_id": "copv_c04_0005",
      "parameters_mm": {
        "inner_radius_mm": 100.0,
        "straight_length_mm": 400.0,
        "dome_depth_mm": 55.00000000000001,
        "boss_bore_radius_mm": 15.0,
        "neck_length_mm": 20.0,
        "liner_thickness_mm": 1.0,
        "overwrap_thickness_mm": 3.0
      },
      "split": "quarantined_research_only"
    },
    {
      "id": "copv_c04r_0006",
      "parent_case_id": "copv_c04_0006",
      "parameters_mm": {
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        "straight_length_mm": 400.0,
        "dome_depth_mm": 70.0,
        "boss_bore_radius_mm": 15.0,
        "neck_length_mm": 20.0,
        "liner_thickness_mm": 1.0,
        "overwrap_thickness_mm": 3.0
      },
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    },
    {
      "id": "copv_c04r_0007",
      "parent_case_id": "copv_c04_0007",
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        "straight_length_mm": 400.0,
        "dome_depth_mm": 60.0,
        "boss_bore_radius_mm": 12.0,
        "neck_length_mm": 20.0,
        "liner_thickness_mm": 1.0,
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      },
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    },
    {
      "id": "copv_c04r_0008",
      "parent_case_id": "copv_c04_0008",
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        "straight_length_mm": 400.0,
        "dome_depth_mm": 60.0,
        "boss_bore_radius_mm": 18.0,
        "neck_length_mm": 20.0,
        "liner_thickness_mm": 1.0,
        "overwrap_thickness_mm": 3.0
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      "split": "quarantined_research_only"
    },
    {
      "id": "copv_c04r_0009",
      "parent_case_id": "copv_c04_0009",
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        "dome_depth_mm": 60.0,
        "boss_bore_radius_mm": 15.0,
        "neck_length_mm": 15.0,
        "liner_thickness_mm": 1.0,
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    {
      "id": "copv_c04r_0010",
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        "neck_length_mm": 25.0,
        "liner_thickness_mm": 1.0,
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    },
    {
      "id": "copv_c04r_0011",
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        "boss_bore_radius_mm": 15.0,
        "neck_length_mm": 20.0,
        "liner_thickness_mm": 0.8,
        "overwrap_thickness_mm": 3.0
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      "split": "quarantined_research_only"
    },
    {
      "id": "copv_c04r_0012",
      "parent_case_id": "copv_c04_0012",
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        "dome_depth_mm": 60.0,
        "boss_bore_radius_mm": 15.0,
        "neck_length_mm": 20.0,
        "liner_thickness_mm": 1.2,
        "overwrap_thickness_mm": 3.0
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      "split": "quarantined_research_only"
    },
    {
      "id": "copv_c04r_0013",
      "parent_case_id": "copv_c04_0013",
      "parameters_mm": {
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        "dome_depth_mm": 60.0,
        "boss_bore_radius_mm": 15.0,
        "neck_length_mm": 20.0,
        "liner_thickness_mm": 1.0,
        "overwrap_thickness_mm": 2.5
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    },
    {
      "id": "copv_c04r_0014",
      "parent_case_id": "copv_c04_0014",
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        "boss_bore_radius_mm": 15.0,
        "neck_length_mm": 20.0,
        "liner_thickness_mm": 1.0,
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    {
      "id": "copv_c04r_0015",
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        "dome_depth_mm": 58.12028140358615,
        "boss_bore_radius_mm": 14.264303463540577,
        "neck_length_mm": 23.67528828459404,
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      "split": "quarantined_research_only"
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    {
      "id": "copv_c04r_0016",
      "parent_case_id": "copv_c04_0016",
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      "split": "quarantined_research_only"
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    {
      "id": "copv_c04r_0017",
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        "dome_depth_mm": 65.77416908646927,
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    {
      "id": "copv_c04r_0018",
      "parent_case_id": "copv_c04_0018",
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    {
      "id": "copv_c04r_0019",
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  ]
}