Nathan Barton, Kevin Durrenberger, Jeff Florando*, Peter Norquist
MIDAS is aimed to be an easy-to-use and comprehensive common source for material properties including both experimental data and models and their parameters. In its current form, its intent is to be the central repository for material strength related data and models with the long-term goal to encompass other material properties [1, 2].
MIDAS framework consists of three major components at LLNL: the SQL database containing both experimental data and material properties and model parameters , and a constitutive material model source code implementation library. There are two main user interfaces – the MIDAS web browser and an API for hydrocodes. The MIDAS browser allows users to view the databases, and to compare model parameter fits to experimental data. The API will allow hydro-codes to interface with both the model implementation and database to initialize material properties for applications. Together, they provide a powerful set of tools in analyzing and developing material models and model parameters. A noteworthy new feature in the MIDAS approach is that different components of physics are inherently coupled. When a stress-strain curve is plotted in MIDAS, the equation of state (EOS), the shear modulus, the strength model must all be specified.
MIDAS web browser is access controlled through account setup and authentication. Interested users should contact Jeff Florando at
*Maintained by Jeff Florando