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Mechanical
Kerf vs Siemens Fibersim
The composites ply design and manufacturing tool — versus an open-core CAD with CLT, failure analysis, AFP/ATL output, and multi-domain engineering.
11/11in Kerf today
7/11in Siemens Fibersim (included)
0behind a paid tier
2026-05-24last reviewed
Grouped by discipline (D1–D14), same as Kerf's own capability list. Click a section to expand it.
D1 Geometry & core CAD
| Capability | Kerf | Siemens Fibersim |
|---|---|---|
| LLM / chat-native editing |
yes
src/components/ChatPanel.jsx
|
no source ↗ |
D2 Structural / FEA
| Capability | Kerf | Siemens Fibersim |
|---|---|---|
| Classical laminate theory (CLT) |
yes
packages/kerf-composites/src/kerf_composites/clt.py
|
yes source ↗ |
| Composite failure analysis |
yes
packages/kerf-composites/src/kerf_composites/failure.py
|
partial source ↗ |
| Interlaminar shear and delamination |
yes
packages/kerf-composites/src/kerf_composites/interlaminar.py
|
partial source ↗ |
| Thermal residual stress |
yes
packages/kerf-composites/src/kerf_composites/thermal_residual.py
|
partial source ↗ |
D13 Verticals
| Capability | Kerf | Siemens Fibersim |
|---|---|---|
| Ply-based laminate layup design |
yes
packages/kerf-composites/src/kerf_composites/layup.py
|
yes source ↗ |
| Drape simulation / producibility |
yes
packages/kerf-composites/src/kerf_composites/drape.py
|
yes source ↗ |
| AFP / ATL manufacturing path output | yes | yes source ↗ |
| Multi-CAD support (NX / CATIA / Creo) |
yes
packages/kerf-cad-core/src/
|
yes source ↗ |
| Laser projection / flat pattern export | yes | yes source ↗ |
D14 Cost / materials / LCA
| Capability | Kerf | Siemens Fibersim |
|---|---|---|
| Laminate weight / cost |
yes
packages/kerf-lca/src/kerf_lca/phases.py
|
yes source ↗ |
- yes shipped
- partial works with limits
- paid tier present, but behind an add-on or meter
- no not available
Corrections welcome. These rows are read off published documentation on the date shown and go stale as products ship. If a row is wrong, open an issue — the source file is public/compare/fibersim.md and every claim in it carries a link.