If you want to find the best material model for one of your own favorite materials that you have already experimentally characterized, and you allow the experimental data to be made freely available on this website, then send a message to the web-master specifying the material name and the type of experimental data that is available. If the experimental data is suitable, I will find the best model for the given experimental data set and publish the results on this section of the website.

• The experimental data need to be from one or more of the following tests: uniaxial tension, uniaxial compression, simple shear, biaxial tension, triaxial tension, or triaxial compression.
• It is recommended that data from more than one type of experimental test is provided, and that the tests are performed at different strain rates.
• The experimental data for each test need to be provided in separate text-files.
• Each text file needs to have three columns: time (in seconds), true strain, and true stress (in MPa). For some materials (e.g. foams) it is also possible to provide the data as engineering strain and engineering stress.