Material Models Libraries

When performing Discrete Element Method (DEM) simulations a key aspect and challenge is to get suitable material inputs for accurate representation of bulk materials.

EDEM has developed several resources to help users introduce a variety of material models quickly and easily in their simulations.


The GEMM database contains thousands of pre-calibrated material models representing a wide variety of rocks and ores. It is particularly suited for engineers in the mining, construction and agriculture industries who design heavy equipment handling such materials.

Users only need to answer 3 questions about their real-life material to obtain a suitable material model: the size of their application, the bulk density of the material and the angle of repose.

Based on this information, the GEMM Database immediately provides them with an EDEM Material Model that contains all the required physics and associated parameter values needed to match the behavior of their real material.


When to use the GEMM database:

  • Design of heavy equipment handling rock and ore-like materials
  • Early-stage DEM-based design work
  • Starting point for more detailed calibration study
  • Comparative studies
  • More about the GEMM Database >


For more complex materials such as soft cohesive soils and fine powders, EDEM has developed a set of example materials models making use of advanced physics to best represent this type of advanced behavior:


The Soils Starter Pack includes 8 models of soils including different range of compressibility and stickiness. These models make use of advanced physics models inbuilt in EDEM to model a range of soils from gravels to soft compressible soils.


When to use the Soils Starter Pack:

  • Design of heavy equipment including off-road construction, agricultural & forestry machinery and vehicles which are handling, or in contact, with soft soils with a particular focus on the vehicle-ground interaction
  • Starting point for users to generate a material model to match their own
  • A compressible, highly-sticky material such as mud and a free flowing one such as sand
  • More about the Soils Starter Pack >


The Powders Starter Pack is designed to be a useful starting point for anyone needing to simulate the complex nature of powders. It consists of a selection of 9 example material models focusing on small particle sizes and representing a range of materials with different flow properties and compressibility.


When to use the Powders Starter Pack:

  • Any powder handling application such as mixing, coating, drying and granulation
  • Starting point for more detailed calibration study
  • Comparison studies: compare the behavior of different powders for instance the mixing of free flowing powder compared to a cohesive poor flowing powder
  • More about the Powders Starter Pack >

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