{
  "id": "software-selection--cli--abaqus--task-18--windows",
  "snapshot": "ANSYS-ABAQUS-AUTOCAD",
  "instruction": "Proceed in Abaqus 2025 Learning Edition through C:\\SIMULIA\\Commands\\abaqus.bat with a command-line or cae noGUI scripting workflow. This task intentionally requires Abaqus because the provided native starting model is an Abaqus CAE database. Start by opening C:\\Users\\user\\Desktop\\task18_punch_plate_init.cae; do not create a new model or replace the supplied starting database. Complete a 2D plane-strain, nonlinear static indentation demonstration in the N-mm-MPa system. The init already contains a 40 mm wide by 12 mm deep deformable plate spanning X=-20..20 mm and Y=-12..0 mm; it is assigned a deliberately linear-elastic engineering polymer with E=2100 MPa and nu=0.35 and a 1 mm structured CPE4R mesh. It also contains an analytical rigid semicircular punch of radius 5 mm, centered at (0,5) in the assembly so its lowest point initially touches the plate at (0,0), plus the required contact surfaces, bottom node set, and punch reference-point set. The init intentionally has no analysis step, contact interaction, boundary condition, job, or result-extraction assembly set. Add a Static, General step named IndentationStep with NLGEOM=ON, initial increment 0.01, minimum increment 1e-6, maximum increment 0.05, and at most 300 increments. Define one finite-sliding surface-to-surface interaction named PunchPlateContact, with the rigid punch as main and the plate top as secondary. Use a property named FrictionlessHard with hard normal contact, separation allowed, and frictionless tangential behavior. Encastre the plate bottom. In IndentationStep constrain punch reference-point U1=0 and UR3=0, prescribe U2=-0.1 mm, and do not apply any force or pressure load. From the supplied instance regions, create assembly node sets named PLATE_BOTTOM_NODES and PUNCH_RP_NODE for ODB result extraction. Request S, U, RF, and contact output sufficient to obtain CPRESS and COPEN. Create and run a one-CPU job named Task18_PunchPlate to successful completion. Save the completed native model and solver result into `C:\\Users\\user\\Desktop\\result`. Derive all metrics from the final ODB frame: max_contact_pressure is the maximum positive CPRESS in MPa; punch_vertical_displacement is U2 at PUNCH_RP_NODE in mm; punch_reaction_force is the absolute summed RF2 at PUNCH_RP_NODE in N/mm; max_mises_stress is the maximum S Mises in MPa. Write these four finite numeric fields to C:\\Users\\user\\Desktop\\result\\metrics.json. Because this is a 2D plane-strain model, reaction and contact resultant forces are per unit out-of-plane thickness (N/mm); the plate-bottom RF2 sum must oppose and balance the punch RF2 within normal solver tolerance. The engineering polymer is intentionally modeled as linear elastic for this demonstration, and the requested 0.1 mm indentation must remain in a numerically stable stress range for that model.",
  "source": "Abaqus 2025 official documentation: https://help.3ds.com/2025/English/DSSIMULIA_Established/SIMACAEELMRefMap/simaelm-c-2delem.htm ; https://help.3ds.com/2025/English/DSSIMULIA_Established/SIMACAEITNRefMap/simaitn-c-contactconstraints.htm ; https://help.3ds.com/2025/English/DSSIMULIA_Established/SIMACAEOUTRefMap/simaout-c-stdoutputvar.htm",
  "config": [
    {
      "type": "upload_file",
      "parameters": {
        "files": [
          {
            "local_path": "task-18/init_file/task18_punch_plate_init.cae",
            "path": "C:\\Users\\user\\Desktop\\task18_punch_plate_init.cae"
          }
        ]
      }
    }
  ],
  "trajectory": "trajectories/",
  "related_apps": [
    "abaqus"
  ],
  "artifact_paths": [
    "C:\\Users\\user\\Desktop\\result",
    "C:\\Users\\user\\Desktop\\eval_detail.txt",
    "C:\\Users\\user\\Desktop\\eval_result.txt"
  ],
  "evaluator": {
    "postconfig": [
      {
        "type": "upload_file",
        "parameters": {
          "files": [
            {
              "local_path": "task-18/eval.py",
              "path": "C:\\Users\\user\\Desktop\\eval.py"
            }
          ]
        }
      }
    ],
    "func": "exact_match",
    "result": {
      "type": "vm_command_line",
      "command": "python C:\\Users\\user\\Desktop\\eval.py",
      "shell": "true"
    },
    "expected": {
      "type": "rule",
      "rules": {
        "expected": "True\n"
      }
    }
  },
  "proxy": false,
  "fixed_ip": false,
  "possibility_of_env_change": "low"
}