{
  "schema": "agentfem.physics-data.material-loading-memory",
  "schema_version": "0.1.0",
  "dataset_version": "pilot-0.1",
  "seed": 20260925,
  "sample_count": 96,
  "points_per_trajectory": 121,
  "material_models": {
    "j2_linear_isotropic": 48,
    "chaboche_combined": 48
  },
  "path_families": {
    "monotonic_tension": 16,
    "unload_reload": 16,
    "tension_compression": 16,
    "symmetric_cyclic": 16,
    "mean_shifted_cyclic": 16,
    "variable_amplitude": 16
  },
  "splits": {
    "train": 72,
    "validation": 12,
    "test": 12
  },
  "ranges": {
    "young_pa": [150000000000.0, 230000000000.0],
    "poisson": [0.25, 0.34],
    "yield_stress_pa": [180000000.0, 450000000.0],
    "maximum_equivalent_strain": [0.003, 0.012],
    "j2_hardening_modulus_pa": [500000000.0, 8000000000.0],
    "chaboche_c1_pa": [15000000000.0, 60000000000.0],
    "chaboche_gamma1": [20.0, 120.0],
    "chaboche_c2_pa": [2000000000.0, 15000000000.0],
    "chaboche_gamma2": [1.0, 20.0],
    "chaboche_isotropic_saturation_pa": [20000000.0, 120000000.0],
    "chaboche_isotropic_rate": [2.0, 20.0]
  },
  "quality_thresholds": {
    "initial_stress_pa": 0.001,
    "plastic_strain_trace": 1e-10,
    "equivalent_plastic_strain_decrease": 1e-12,
    "yield_surface_relative_residual": 1e-8,
    "j2_monotonic_analytical_relative_error": 1e-10,
    "zero_strain_memory_contrast_pa": 1000000.0,
    "refined_stress_relative_change": 0.02,
    "refined_peeq_relative_change": 0.05,
    "j2_plastic_work_negative_tolerance_j_m3": 0.01,
    "final_plastic_work_minimum_j_m3": 0.0
  },
  "scope": "Synthetic three-dimensional small-strain material-point trajectories under prescribed proportional deviatoric strain. J2 linear isotropic hardening and experimental Chaboche combined hardening are separate labels. No experimental calibration, fatigue-life label, damage, temperature dependence, finite-strain claim or structural FEM field claim."
}