Simulation of breakage and abrasion of granules and tablets

Although tablets have been produced in large quantities for a long time, there is a need for better understanding the mechanical properties, as well as the anisotropies that can be originated during compaction. This is not a trivial aspect and the industry has devoted large resources to fully characterize these parameters.The objectives of the current project are the investigation of the breaking mechanisms of granules and tablets with focus on industrial transport processes and the investigation of the characteristics of the formation of wear. For this aim, Discrete Element Method (DEM) simulations of the occurrence of wear and breakage during transportation of granules and tablets shall be established.

In order to achieve this goal, the following activities will be performed:

  • Design of test equipment for the investigation of the occurrence of wear and breakage (e.g. compression test, shear test, impact test).
  • Investigation of the attrition, abrasion, impact and compression mechanisms at different granule stressing and transport devices (screw conveyor, conveyor band, among others.
  • DEM simulation focused on the mechanical strength of different granules and tablets in focus on anisotropies description as well as regarding their wear and breakage for different transport routes.
  • Validation of the simulations by experiments and subsequent analysis (e.g. using particle size measurements and X-ray tomogrography.

Laboratory or pilot scale experiments will be carried out to validate the models, where the simulation and experimental results can be used to establish the extent of the model’s predictive capability. At the end of the project the decisive mechanisms of wear and breakage of granules in transportation processesshould be determined and fully understood. In combination with a detailed and specific DEM model the optimization oftransportation processes regarding safety of staff and consumers might be possible.

Ramon Cabiscol Martinoli


Nationality: Spanish
Current Stay: TU Braunschweig
Braunschweig - Germany

Since 2014 Research Associate at iPAT - Research Group "Bulk Solids and Granular Matters".

2013 DAAD Fellowship, Collaboration at project „Segregation and shear flow in granular heaps and silos“.

2008-2013 Studies of Chemical Engineering at Institut Químic de Sarrià-Universitat Ramon Llull (Barcelona).

Contact details

Technische Universität Braunschweig
Institut für Partikeltechnik

Volkmaroder Straße 5
38104 Braunschweig

Ramon Cabiscol Martinoli