Research projects

MATFEM have participated in research projects that are promoted and partly funded by the European Union and various federal ministries of Germany. In these projects, universities, research facilities and the industry work together.

These projects are an opportunity to integrate recent findings into our own developments, especially into the material models.


This project lines out design and manufacturing concepts for additively manufactured lightweight lattice structures manufactured by laser powder bed fusion (LPBF) subjected to quasi-static, dynamically and cyclical loads.

MATFEM’s part in the project is a description of bulk materials with orthotropy of plasticity and orthotropy of ductility caused by the layer-wise production process. In addition MATFEM will develop a homogenized material model for different lattice structures based on its modular material model MF GenYld + CrachFEM. This homogenized material model will allow to simulate misue and crash load cases of lightweight components with lattice structure surrounded by bulk material on a macroscopic level.


The project investigates new testing and simulation methods to describe the post-fracture behaviour of glass-fibre reinforced polymer structures.

MATFEM’s task is to develop a suitable material model and to implement it as an experimental module for the material model MF GenYld + CrachFEM.


This project deals with the development of laser-based joining technologies for hetero­geneous light-weight designs.

MATFEM simulates heterogeneous joints in detail using FEM meso-models. Experimental and virtual trials will be used to derive macro-models, which should allow the stiffness and failure behaviour of the heterogeneous connections to be simulated with acceptable accuracy for crash simulations under industrial conditions. The basis for the material description is our material model MF GenYld + CrachFEM.


This project tries to develop a new hybrid manufacturing technique: ultrasonically assisted forming and caulking.

MATFEM intends to develop a constitutive model to represent plasticity of metals with superimposed ultrasonic vibration and integrate it into the user material model MF GenYld + CrachFEM. Further activities concern improved modelling of friction between tool and part with ultrasonic excitation.

NADIA Project

This project simulates in-service loads of car components made from cast light alloys while considering the influence of manufacturing and heat-tretments.

MATFEM took part in two of the work packages of this project: We developed material models and simulation techniques to model cast parts in the body-in-white structure under crash loads and to model cast parts in the combustion engine under thermo-mechanical fatigue. Both methods account for the local material properties that result from the casting process.