A new uniaxial tester for measuring flowability and calibrating DEM models for cohesive particulates
In this guest blog discover the story behind the development of the 'Uniaxial Powder Tester' from Freeman Technology and learn why this tester provides an attractive method for characterizing the flowability of powders and calibrating DEM models.
Designing reliable transfer chutes with bulk material simulation: a project by Greentechnical
In this guest post, Stephan Roos discusses how bulk materials handling experts Greentechnical harness DEM simulation to address their clients' challenges and presents one of their transfer chute re-design projects.
Calibrating DEM simulations of cohesive solids with the Uniaxial Powder Tester
Dr. John P. Morrissey of the University of Edinburgh discusses the challenges of characterizing the flowability of fine granular materials and explains the suitability of the Uniaxial Powder Tester as a DEM calibration tool for cohesive powders.
Simulating soft soils in EDEM with the Soils Starter Pack
A new resource for EDEM users interested to simulate the interaction of their equipment with a range of soils including dry or wet gravel, sand or clay.
Modelling geomaterials – new insight from our Intern
Our engineering intern reports on his work looking at using the Generic EDEM Material Model Database to model geomaterials such as sand, gravel, clay, etc. The example looked at consists of modelling the interaction between sand and a tillage tool.
Playing with dirt at the GEMM database test center
In this video blog we take you through a demonstration of the Generic EDEM Material Model (GEMM) database. This was filmed during a conference and includes some live experiments, have a look!
Using the GEMM database and applying it to an EDEM – Adams Simulation
Find out how the Generic EDEM Material Model (GEMM) Database can be used to easily input a variety of different material models into your simulation. This post shows the example of an excavator handling two materials with different levels of cohesion
What numbers should I put in? The perennial question for DEM users
One of the key challenges of DEM simulation is to ensure that the simulated material behavior reflects the real material behavior. In this post we discuss the difficulty of getting material inputs and the role of calibration.
DEM Pro-Tip: Don’t believe the hype! Why you don’t need high-fidelity particle shapes…
Shape is a topic that is of great interest in the DEM community and there are a couple of methods vying for the attentions of users: the multi-sphere approach that uses clumped spheres, and a polyhedral approach that uses angular shapes.
DEM Pro-Tip: If it doesn’t have shape, then it’s probably wrong
At the heart of any industrial DEM simulation is the mathematical representation of a real bulk material, which is also termed the ‘Material Model’. There are lots of aspects to a material model and a crucial one is the shape of the particles used.