Skip to content

COMMERCIAL.md

Latest commit

 

History

History
46 lines (27 loc) · 2.28 KB

COMMERCIAL.md

File metadata and controls

46 lines (27 loc) · 2.28 KB
Raw

Commercial License

NumSim-CAS is offered under a dual-license model.

Open-source use: GPL-3.0

For open-source projects, academic research, and any use compatible with the GNU General Public License v3.0 (GPL-3.0-only), NumSim-CAS is available free of charge under the terms of the LICENSE file.

The GPL-3.0 requires that derivative works also be licensed under GPL-3.0 and that source code be made available to recipients of the software.

Commercial / proprietary use

If your use case is incompatible with the GPL-3.0 — typically because you want to embed NumSim-CAS in a proprietary product without making your source code available under GPL terms — a commercial license is available.

Typical scenarios requiring a commercial license:

  • Embedding in a closed-source FEM solver (Abaqus UMAT/VUMAT, ANSYS USERMAT, LS-DYNA, etc.).
  • Distributing a proprietary product that links against or includes NumSim-CAS.
  • Internal use within an organisation that does not wish to make its derivative code GPL-licensed.

The commercial license grants:

  • The right to use NumSim-CAS in proprietary products.
  • Freedom from the GPL-3.0 source-disclosure obligation for derivative works.
  • Terms negotiated case-by-case based on use case, distribution scope, and support requirements.

How to acquire

Contact the maintainer to discuss terms:

Please include in your inquiry:

  1. A brief description of how you intend to use NumSim-CAS.
  2. The scope of distribution (internal-only vs distributed product, number of seats/instances, public or private deployment).
  3. Any specific support or warranty requirements.

Pricing is determined per inquiry; there is no public price list.

Contributor rights

All contributions to NumSim-CAS must be offered under terms compatible with both the GPL-3.0 and the commercial license. The project uses the Developer Certificate of Origin (DCO) — by adding a Signed-off-by: trailer to commits (via git commit -s), contributors certify that their work can be re-offered under both licenses.

See CONTRIBUTING.md for the contributor workflow.