---
license: odc-by
pretty_name: DeepJEB++
size_categories:
  - 10K<n<100K
tags:
  - engineering-design
  - finite-element-analysis
  - surrogate-modeling
  - 3d-geometry
  - jet-engine-bracket
---

# DeepJEB++

A foundation-model-driven 2D-to-3D data-augmentation dataset for structural
engineering design. **15,360** simulation-labeled jet-engine brackets, generated
by adapting Stable Diffusion v1.5 and TRELLIS, each paired with automatically
computed linear-elastic finite-element labels under four load cases.

## License
**ODC-By v1.0** (Open Data Commons Attribution License). Free to use, modify,
and share -- including for commercial purposes -- with attribution (please cite
the DeepJEB++ paper and the upstream SimJEB and DeepJEB datasets).
See the `LICENSE` file.

## Contents
| Path | Description |
|------|-------------|
| `1_surface_meshes/` | 15,360 surface meshes (`.obj`, native ~50k verts) |
| `2_boundary_conditions/` | Four-bolt + loaded-clevis interfaces (vertex indices, mm frame) |
| `3_fea_fields/` | Per-case surface FEA fields (`.npz`): displacement `U`, von Mises `vm` for 4 loads |
| `deepjebpp_labels.csv` | Scalar labels: mass, per-load max displacement & 95th-pct von Mises |
| `metadata.json` | Material, load cases, units, layout |
| `README.txt` | Full human-readable specification |

All field/BC entries are at a consistent 25k FEM-mesh density. BC node indices
reference `3_fea_fields/<case>.npz` `surface_points` (25k), not the native `.obj`.

## Load cases (Ti-6Al-4V, linear static)
vertical 35.6 kN | horizontal 37.8 kN | diagonal 42.3 kN | torsional 565 kN-mm

## Citation
Citation will be added upon publication (ASME Journal of Mechanical Design).