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About

What is Ikarus?

Ikarus is a project developed by the Institute for Structural Mechanics, University of Stuttgart. It strives to develop an easy-to-read and easy-to-use framework to perform finite element analysis. It acts as a front-end code that utilizes several modules from DUNE and has some other dependencies.

Ikarus Logo

Ikarus endeavors to not reinvent the wheel but to just provide a generic interface that makes use of the existing modules, resulting in a more expressive, modular library to solve partial differential equations. The main idea is to provide users with a platform to rapidly prototype their ideas, thereby enabling researchers across the world to quickly test their various theories. One of the major principles that we follow is "take what you need," where the users can pick different functionalities as per their requirements to try out their own examples. We also provide certain examples that can help a user get familiar with Ikarus. Ikarus itself is written in C++, but it also comes with Python bindings, which can then aid in combining the functionalities of Ikarus with different Python packages. It uses C++ template (meta) programming to achieve a general and easy-to-extend library. The idea of interface segregation between a grid space and an ansatz space from DUNE is heavily exploited here. Some of the features that we provide are

  • Element library (linear elastic, nonlinear elastic, Kirchhoff-Love Shell, truss)
  • Material library (St. Venant-Kirchhoff, Neo-Hookean)
  • Nonlinear Solvers (Newton-Raphson Method, Trust region Method)
  • Assemblers for sparse and dense matrices
  • Control routines (load control, displacement control, arc-length control)
  • Handle Dirichlet boundary conditions
  • Observer patterns to log user-desired information as an output

Dependencies

Bug

This section will be updated.

Ikarus Core Developers

The Ikarus Core Developers develop, maintain and look after Ikarus.

Talks

  • Jakob, H., Vinod Kumar Mitruka, T. K. M., Müller, A. Ikarus and dune-iga: Easy-To-Use C++ Libraries With Python Bindings for Structural Analysis Within DUNE. 9th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS), Lisbon, Portugal, June 03–07, 2024.
  • Jakob, H., Vinod Kumar Mitruka, T. K. M., Müller, A. Ikarus and dune-iga: Easy-To-Use C++ Libraries With Python Bindings. FE im Schnee 2024, Hirschegg, Austria, March 17–20, 2024.
  • Müller, A., Jakob, H., Vinod Kumar Mitruka, T. K. M., Sander, O., Bischoff, M. Ikarus with dune-iga: An open-source C++ library for Isogeometric Analysis within the Dune framework. 11th International Conference on Isogeometric Analysis 2023 (IGA 2023), Lyon, France, June 18–21, 2023.

Datasets

Different versions of Ikarus are released via the Data Repository of the University of Stuttgart (DaRUS).

How to cite us?

Here is the BibTex entry for our latest dataset:

@data{Ikarusv04_2024,
author    = {Müller, Alexander and Vinod Kumar Mitruka, Tarun Kumar Mitruka and Jakob, Henrik},
publisher = {DaRUS},
title     = {Ikarus v0.4},
year      = {2024},
version   = {V1},
doi       = {10.18419/darus-3889}
}