mimi

mimi is IGA solid mechanics solver leveraging MFEM's NURBS discritization techniques. It implements implicit nonlinear structural dynamics and contact mechanics with a rigid body, with an option for shared memory parallelization. Python integration was part of a design to support seamless integration to existing scientific python piplines; through a thin python wrapper, it also enables easy data exchange and dynamic runtime controls. The main use-case involves investigating and prototyping solid models in multiphysics scenarios, emphasizing fluid-structure-contact interaction.

Install

First, dependencies. Starting with splinepy

cd third_party/splinepy
pip install . -v --config-settings=cmake.args="-DSPLINEPY_MORE=OFF;"

For SuiteSparse, you can use conda:

conda install -c conda-forge suitesparse

or you can get it from any package distribution. For example:

# brew (mac)
brew install suite-sparse

# ubuntu
sudo apt-get install libsuitesparse-dev

Now, mimi

git submodule update --init --recursive
python3 setup.py develop

You can pass build variables with your command. For example:

# 1. for debug build
DEBUG=1 python3 setup.py develop
# 2. cmake arguments
CMAKE_ARGS="-DCMAKE_PREFIX_PATH=/path/to/mydir;/usr/dir2 -DMIMI_USE_OMP=False" python3 setup.py develop

Finally, try examples - currently those need to be called at mimi's root

python3 examples/nonlinear_solid.py

Acknowledgement

Some of the functions and implementations are motivated/adapted/extracted from the following amazing open-source projects. Please check them out!

j042/mimi

mimi

Install

Acknowledgement