Neper is distributed as a free / open-source software, under the terms of the GNU General Public License (GPL). In short, this means that everyone is free to use Neper and to redistribute it on a free basis. Neper is not in the public domain; it is copyrighted and there are restrictions on its distribution (see the license and the related FAQ).
It you use Neper for your own work, please mention it explicitly and cite one or several of the papers given in the Reference papers section below. The papers are available for download.
- The PDF documentation is available here.
- The html documentation is available here.
Neper’s dependencies include GSL, muParser (included in Neper), nanoflann (included in Neper), openGJK (included in Neper), NLopt (included in Neper), tinycolormap (included in Neper), Gmsh, libScotch (included in Neper) and POV-Ray.
Romain Quey, Paul Dawson and Fabrice Barbe, Large-scale 3D random polycrystals for the finite element method: Generation, meshing and remeshing, Comput. Methods Appl. Mech. Engrg., vol. 200, pp. 1729-1745, 2011: paper
Romain Quey and Loïc Renversade, Optimal polyhedral description of 3D polycrystals: Method and application to statistical and synchrotron X-ray diffraction data, Comput. Methods Appl. Mech. Engrg., vol. 330, pp. 308-333, 2018: postprint link
- Videos are available here and constitute a good first introduction to Neper.
- Phon: insert interface elements and export to Abaqus or OOFEM. Note: interface elements can be inserted directly in Neper using
- Neper2CAE and PyCiGen: generate a columnar grain-growth polycrystal, insert interface elements and export to Abaqus (hex elements)