Home

Welcome to the IFEM-Elasticity wiki!

The structure of IFEM is that you have a core library and several applications built on top of this library. IFEM-Elasticity (this repository) is one of those applications. To start using IFEM-Elasticity you will first need to clone and compile the IFEM core library, followed by cloning and building this module. The default location to clone applications is in the Apps-folder of your IFEM clone.

IFEM-Elasticy consists of three applications:

LinEl - Linear elasticity problems
- 2D and 3D elasticity problems
- Beam and bar/cables in 2D space
- Kirchhoff-Love plate and shell problems
- Static analysis
- Eigenvalue analysis (free vibration and linearized buckling)
- Dynamic analysis based on Newmark time integration, either through modal transformation for direct integration
- Adaptive analysis based on a posteriori error estimates
ShellEl - Nonlinear shell problems
- Geometrically nonlinear Kirchhoff-Love shells
- Quasi-static analysis with prescribed load increments
- Path-following analysis with arc-length method
- Adaptive mesh refinement in each load increment
NonLinEl - Finite deformation continuum problems (2D and 3D)
- Total Lagrange formulation with large strains and 2nd Piola-Kirchhoff stresses
- Updated Lagrange formulation with engineering strains and Cauchy stresses
- Mixed formulations handling incompressible materials
- Linear isotropic elasticity, Neo-Hookean hyperelasticity and plasticity
- Rigid-body to flexible-body contact using Mortar-methods
- Quasi-static analysis with prescribed load increments
- Adaptive mesh refinement in each load increment