20250827_output.json
Brief explanation of each variable
hyb: Unique identifier for the hybrid specimen.hyb_name: Human-readable specimen label (for easier identification; not used for training).base_plate_id: Identifier of the CFRP base plate (may be missing; not available for simulations).ply_thickness_val: Thickness of a single CFRP ply (mm).overlap_len_mm: Overlap length of the joint region (mm).cfrp_surf_prep_class: Surface preparation category applied to the CFRP.bolt: Flag indicating a bolted joint (1 = yes, 0 = no).adhesive: Flag indicating an adhesive joint (1 = yes, 0 = no).aging: Flag indicating aging treatment (1 = aged, 0 = not aged).cfrp_tens_stren_90_dgr_mpa: CFRP tensile strength in 90° direction (MPa).cfrp_tens_stren_0_dgr_mpa: CFRP tensile strength in 0° direction (MPa).bolt_tens_strength_val: Bolt tensile strength (MPa).bolt_tens_mod_val: Bolt Young’s modulus (MPa).adhesive_tens_strength_val: Adhesive tensile strength (MPa).adhesive_tens_mod_val: Adhesive Young’s modulus (MPa).bolt_diameter_val: Bolt diameter (mm).adhesive_thickness_val: Thickness of the adhesive layer (mm).torque_val_Nm: Applied bolt pretension torque (N·m); null if no bolt.metal_surf_prep_class: Surface preparation category applied to the metal part (usually missing for simulations).metal_tens_mod_val: Metal Young’s modulus (MPa).metal_tens_strength_val: Metal tensile strength (MPa).metal_thick_val: Metal thickness (mm).force_val_min: Minimum force value in the test curve (N), aligned/interpolated to strain/stress.force_val_max: Maximum force value in the test curve (N), aligned/interpolated to strain/stress.force_val_mean: Mean force value over the curve (N), aligned/interpolated to strain/stress.strain_val_min: Minimum measured strain (dimensionless), aligned to force/stress.strain_val_max: Maximum measured strain (dimensionless), aligned to force/stress.strain_val_mean: Mean strain over the curve (dimensionless), aligned to force/stress.stress_val: Full stress history/curve as an array (MPa), derived from force and adhesion area.stress_val_min: Minimum stress value over the curve (MPa), aligned to force/strain.stress_val_max: Maximum stress value over the curve (MPa), aligned to force/strain.stress_val_mean: Mean stress value over the curve (MPa), aligned to force/strain.hyb_tens_strength_val: Hybrid specimen tensile strength (MPa), typically the maximum stress.simulated: Data source flag (true= simulation,false= experiment).adh_temp_val_min: Minimum adhesive cure temperature during autoclave cycle (°C).adh_temp_val_max: Maximum adhesive cure temperature during autoclave cycle (°C).adh_temp_val_mean: Mean adhesive cure temperature during autoclave cycle (°C).friction_steel_steel_val: Friction coefficient between screw/bolt and metal plate (dimensionless).friction_steel_cfrp_val: Friction coefficient between screw/bolt and CFRP plate (dimensionless).prestress_val_N: Bolt pre-stress (pretension force) applied to the joint (N).