{
  "design_variables": [
    {
      "name": "tip_thickness",
      "type": "continuous",
      "bounds": [15.0, 25.0],
      "units": "mm",
      "initial_value": 20.0
    },
    {
      "name": "support_angle",
      "type": "continuous",
      "bounds": [20.0, 40.0],
      "units": "degrees",
      "initial_value": 35.0
    }
  ],
  "objectives": [
    {
      "name": "minimize_max_stress",
      "description": "Minimize maximum von Mises stress",
      "extractor": "stress_extractor",
      "metric": "max_von_mises",
      "direction": "minimize",
      "weight": 10.0,
      "units": "MPa"
    }
  ],
  "constraints": [
    {
      "name": "max_displacement_limit",
      "description": "Maximum allowable displacement",
      "extractor": "displacement_extractor",
      "metric": "max_displacement",
      "type": "upper_bound",
      "limit": 1.0,
      "units": "mm"
    }
  ],
  "optimization_settings": {
    "n_trials": 50,
    "sampler": "TPE",
    "n_startup_trials": 20,
    "tpe_n_ei_candidates": 24,
    "tpe_multivariate": true,
    "comment": "20 random trials for exploration, then 30 TPE trials for exploitation"
  },
  "model_info": {
    "sim_file": "C:\\Users\\antoi\\Documents\\Atomaste\\Atomizer\\examples\\bracket\\Bracket_sim1.sim",
    "note": "Stress minimization with displacement constraint (mass not available in OP2)"
  }
}