underbody-impact-data / metadata /floorfrontdriver_geometry.json
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Document simulation protocol and generation evidence for v1.1.0
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{
"geometry": "floorfrontdriver",
"data_revision": "review_release_v1",
"cases": 500,
"states_per_case": 17,
"displacement_shape_per_case": [
7408,
17,
3
],
"effective_stress_shape_per_case": [
7374,
17
],
"effective_stress_definition": {
"quantity": "von_mises_effective_stress",
"entity": "shell_element",
"through_thickness_reduction": "max_integration_point",
"ls_prepost_component": "etime 9",
"ls_prepost_label": "Effective Stress (v-m), ip#max",
"integration_point_index_retained": false,
"units": "MPa"
},
"mesh": {
"file": "meshes/floorfrontdriver_mesh.npz",
"nodes": 7408,
"directed_graph_edges": 29572,
"shell_elements": 7374,
"shell_triangles": 341,
"shell_quads": 7033,
"boundary_nodes": 416
},
"time_value_range": [
0.0,
0.030000703409314156
],
"condition_ranges": {
"impact_x": [
-2724.6455078125,
-1656.1412353515625
],
"impact_y": [
224.04954528808594,
612.4707641601562
],
"impact_z": [
284.037841796875,
321.5826110839844
],
"velocity_x": [
-1207.6029052734375,
1239.7603759765625
],
"velocity_y": [
-1189.7738037109375,
1136.3560791015625
],
"velocity_z": [
1718.663818359375,
5186.32568359375
],
"impact_speed": [
1741.2091064453125,
5195.2529296875
],
"mass_ratio": [
0.7512320280075073,
1.2494629621505737
],
"impactor_mass": [
0.007512320298701525,
0.012494630180299282
],
"impactor_density": [
3.910162558895536e-05,
6.503454642370343e-05
],
"theta_deg": [
7.669999831705354e-06,
14.99563217163086
],
"phi_deg": [
0.1986832469701767,
359.6679382324219
],
"material_young_mpa": [
70000.0,
210000.0
],
"material_poisson": [
0.30000001192092896,
0.3400000035762787
],
"material_index": [
0,
2
]
},
"material_counts": {
"aluminum_rigid": 167,
"steel_rigid": 166,
"titanium_rigid": 167
},
"units": {
"status": "SPECIFIED",
"system": "tonne-mm-s-N",
"coordinate": "mm",
"displacement": "mm",
"time": "s",
"velocity": "mm/s",
"mass": "tonne",
"density": "tonne/mm^3",
"effective_stress": "MPa",
"material_young_field_name": "material_young_mpa",
"angles": "degrees"
},
"case_file_policy": "original compact 17-state .pt bytes preserved"
}