Information Day: Material Characterizations and Measurement Technology

Increasing requests on the forcast quality of numerical simulations, as well as the development of new materials, are the new challenges for the characterization of mechanical material parameters.

For example, numerical production and process simulation and the subsequent transfer of pre-strains, pre-damages and  sheet thinning to crash simulation require an increasingly complex characterization of the mechanical material parameters. The deformation and damage behaviour of components made of fibre-reinforced thermoplastics can also be predicted much better if anisotropic and viscoplastic material properties are taken into account.


For large deformations or highly plastic material behaviour (e.g. for thermoplastics), it is no longer sufficient to describe the material behaviour only with material parameters such as Poissons ratio, young's modulus or yield stress. More complex material descriptions will eventually become necessary, which are capable to describe the deformation and damage behaviour of the materials specifically for the application and the type of load in the component as accurately as possible.


For this purpose, the necessary mechanical properties are determined by means of suitable experiments, which provide the basis for the material card in the further calibration process. Typically, the experiments performed are simulated with the material card and the virtual results are compared with the experimental measurements. The forecasting quality of the material card can be successively optimized with the aid of a "reverse engineering process".



  • Presentation of the test system (motivation, measuring technique, test execution, sample specimens)
  • Methods applied (material parameter identification with LS-OPT, formation of substitute areas using neural networks and LS-OPT)
  • Example Applications for

- Foam materials
- Compact thermoplastics
- and elastomers


In cooperation with our partner 4a engineering GmbH.


Introduction to Material Characterization (F. Andrade, DYNAmore)

Damage and Failure Modelling with GISSMO (D. Koch, DYNAmore)


Estimation of Stress Triaxiality from optically measured Strain Fields (S. Conde, DYNAmore)




Parameter Identification of an Anisotropic Material Model using Full-Field Calibration (C. Ilg, DYNAmore)


Experiments and Material Cards for Polymers (M. Helbig, DYNAmore)


Applications of IMPETUS (S. Riemelmoser, 4a engineering)


Labratory visit



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