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"id": "single-software-execution--cli--abaqus--task-12--windows",
"snapshot": "ABAQUS-2025L",
"instruction": "Perform a linear buckling analysis of a thin plate (Variant A) using Abaqus via the Command Line Interface (CLI). To start Abaqus/CAE, run `C:\\SIMULIA\\CAE\\2025LE\\win_b64\\resources\\install\\le\\launcher.bat cae` (adjust path to your install). Before starting the work, Abaqus command-line jobs should be launched through `C:\\SIMULIA\\Commands\\abaqus.bat`.\n\nUse the N-mm-MPa unit system. Part: Create a 3D Deformable Shell, Planar part. Sketch a square plate from (0,0) to (96,96) in the X-Y plane. Property: Create a material named Steel. Set Young's modulus E = 210000 MPa and Poisson's ratio nu = 0.3. Create a Homogeneous Shell Section with thickness = 1.2 mm and 5 integration points. Assign the shell section to the entire plate. Assembly: Create one dependent instance of the plate. Step: Create a Linear Perturbation > Buckle step named Step-Buckle-A. Request 3 eigenvalues. Mesh: Use global seed size = 6 mm. Use S4R shell elements. Generate the mesh. Load and Boundary Conditions: Represent the compressive edge load of 1.2 N/mm on the two vertical edges by equivalent nodal forces after meshing. On the X=0 edge, apply nodal forces in the +X direction. On the X=96 edge, apply nodal forces in the -X direction. Because the edge length is 96 mm and the mesh spacing is 6 mm, apply 7.2 N to each interior edge node and 3.6 N to each corner edge node on each loaded vertical edge. Apply U3 = 0 on all four plate edges: X=0, X=96, Y=0, and Y=96, to represent simply supported transverse conditions. Select the center mesh node at approximately (X=48, Y=48, Z=0) and apply U1 = U2 = 0 to suppress in-plane translational rigid-body motion. Select the bottom-edge midpoint mesh node at approximately (X=48, Y=0, Z=0) and apply U1 = 0 only to suppress the remaining in-plane rotational rigid-body mode. Job: Create Job-Buckle-A and submit it for solving. Visualization: Review the first buckling mode. Record the first eigenvalue. Save: Save the model database to C:\\Users\\user\\Desktop\\Job-Buckle-A.cae and ensure the output database is generated as C:\\Users\\user\\Desktop\\Job-Buckle-A.odb.",
"source": "https://github.com/nasa/abaverify https://github.com/pantale/abaqusVumat https://github.com/davidmorinNTNU/ABAQUS_subroutines",
"config": [
{
"type": "upload_file",
"parameters": {
"files": []
}
}
],
"trajectory": "trajectories/",
"related_apps": [
"abaqus"
],
"artifact_paths": [
"C:\\Users\\user\\Desktop\\Job-Buckle-A.cae",
"C:\\Users\\user\\Desktop\\Job-Buckle-A.odb"
],
"evaluator": {
"postconfig": [
{
"type": "upload_file",
"parameters": {
"files": [
{
"local_path": "task-12/eval.py",
"path": "C:\\Users\\user\\Desktop\\eval.py"
}
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}
}
],
"func": "exact_match",
"result": {
"type": "vm_command_line",
"command": "C:\\SIMULIA\\Commands\\abaqus.bat cae noGUI=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"
}
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