{
    "format_version": "0.2.0",
    "CaseID": "Example M80 L-flange",

    "FlangeSegment": {
        "type": "PolynomialLFlangeSegment",
        "a": 0.150,
        "b": 0.122,
        "s": 0.054,
        "t": 0.172,
        "R": 4.000,
        "central_angle": 0.04027682889217683,
        "Zg": -115667,

        "bolt": {
            "type": "StandardMetricBolt",
            "designation": "M80",
            "material_grade": "10.9",
            "shank_length": 0.160,
            "shank_diameter_ratio": "pitch",
            "stud": true
        },
        "preload_ratio": 0.75301,
        "Do": 0.086,
        "washer": null,
        "nut": {
            "type": "RoundNut",
            "designation": "M80"
        },

        "gap": {
            "height": 0.00089,
            "angle": 0.5235987755982988,
            "shape_factor": 1.0
        },
        "tilt_angle": 0.0017453292519943296,

        "E": 210e9,
        "G": 80.77e9,
        "s_ratio": 1.0,
        "r": 0.01,
        "k_shell": "interp",

        "PPL": 0.05,
        "DFT": 300e-6,
        "settlement_factor": 0.5
    },

    "BoltFatigueCurve": {
        "type": "BoltFatigueCurve",
        "BoltNominalDiameter": 0.080,
        "DS_ref": 50e6,
        "gamma_M": 1.1
    },

    "MarkovMatrix": {
        "range":  [ 25e6,  50e6, 100e6, 150e6, 200e6, 250e6, 300e6, 375e6, 500e6, 625e6],
        "mean":   [100e6, 100e6, 100e6, 100e6, 100e6, 100e6, 100e6, 100e6, 100e6, 100e6],
        "cycles": [  3e8,   1e8,   3e7,   8e6,   2e6,   5e5, 1.5e5,   4e4,   8e3,   1e3],
        "duration": 30
    },

    "AllowableDamage": 1.0,
    "SMF": 1.0,

    "Stats": {
        "Preload": {
            "Distribution": "Normal",
            "MeanRatio": 0.77,
            "CoV": 0.03
        },
        "PlasticLoss": {
            "Distribution": "Normal",
            "Mean": 0.03,
            "CoV": 0.33333
        },
        "DFT": {
            "Distribution": "Normal",
            "Mean": 250e-6,
            "CoV": 0.12
        },
        "Gap": {
            "JointDistribution": "IEC 61400-6:2020 AMD1",
            "FlatnessTolerance": 0.0014,
            "Angle": {
                "Distribution": "LogNormal",
                "Mean": 1.7453292519943295,
                "CoV": 1.0
            },
            "ShapeFactor": {
                "Distribution": "Normal",
                "Mean": 1.0,
                "CoV": 0.15
            }
        },
        "Tilt": {
            "Distribution": "LogNormal",
            "Mean": 0.0017453292519943296,
            "CoV": 0.5
        },
        "LoadRangeFactor": {
            "Distribution": "LogNormal",
            "Mean": 1.0,
            "CoV": 0.12
        },
        "FatigueClassFactor": {
            "Distribution": "Normal",
            "Mean": 1.0,
            "CoV": 0.10,
            "DS_ref_mean": 62e6
        },
        "AllowableDamage": {
            "Distribution": "LogNormal",
            "Mean": 1.0,
            "CoV": 0.30
        },
        "StressMultiplicationFactor": {
            "Distribution": "Product",
            "Dist1": {
                "Distribution": "LogNormal",
                "Mean": 1.0,
                "CoV": 0.05
            },
            "Dist2": {
                "Distribution": "LogNormal",
                "Mean": 1.0,
                "CoV": 0.05
            }
        }
    }
}