This is the Linux app named igafem whose latest release can be downloaded as igafem-v2.zip. It can be run online in the free hosting provider OnWorks for workstations.
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igafem
DESCRIPTION
Isogeometric analysis (IGA) is a fundamental step forward in computational mechanics that offers
the possibility of integrating methods for analysis into Computer Aided Design (CAD) tools and vice versa. The benefits of such an approach are evident, since the time taken from design to analysis is greatly reduced leading to large savings in cost and time for industry. The tight coupling of CAD and analysis within IGA requires knowledge from both fields and it is one of the goals of the MIGFEM is to provide a simple-to-understand IGA FEM code. The work is funded under the FP7 Initial Training Network Funding under grant number 289361 'Integrating Numerical Simulation and Geometric Design Technology.'
If you use this code or inspired by it please cite the following reference in your work:
VP Nguyen, C Anitescu, S Bordas, T Rabczuk. "Isogeometric analysis: an overview and computer implementation aspects". Mathematics and Computers in Simulation, (2015), pp. 89-116, Vol 117.
Features
- 1D, 2D, 3D linear elasticity with Bsplines/NURBS/Tsplines
- h,p and k-refinement
- 2D XIGA for traction-free cracks and material interfaces
- Penalty method, Lagrange multiplier, least square method for Dirichlet boundary conditions
- 2D compatible multi-patch NURBS is supported
- Kirchhoff and Kirchhoff-Love shells (rotation free formulation)
- Kirchhoff plate and Mindlin-Reissner plate with NURBS
- Implementation of IGA based on the Bezier extraction (2D and 3D)
- Support Tsplines from Rhino3d (see also GeoPDEs)
- Geometrically nonlinearities for solids and thin shells.
- Transient dynamics analysis with implicit Newmark and explicit central difference scheme
- Free vibration analysis of solid/plate/shells.
- Various visualization techniques for B-splines/NURBS/Tsplines
- 2D/3D incompatible multi-patch NURBS with Nitsche's method (see nitsche-2D.zip)
- Coupling of solid and structural elements with Nitsche's method (development)
- material point method with B-splines (development)
- 2D Arlequin for mesh coupling
- Available in Octave with GUI (check igafemgui)
- Collocation methods for elasticity
Audience
Science/Research, Education, Engineering
Programming Language
MATLAB, C
Categories
This is an application that can also be fetched from https://sourceforge.net/projects/cmcodes/. It has been hosted in OnWorks in order to be run online in an easiest way from one of our free Operative Systems.
