Crack Detection in DEM models

 

Cracks and fractures are an important feature deforming rocks, but they are difficult to detect in in DEM (Discrete Element Models). Finding the exact location, number and size of cracks is important for further research on cracks in DEM models. Two tools to find cracks in DEM models have been developed: PPPP (Python Particle Post Processor), which finds cracks based on particle proximity, and raytracer, which finds cracks via ray tracing and smoothes them using a voxel-creation algorithm.

Both of these methods have been developed throughout 2010 by Stephan Tulkens.

Picture_1101 - Ray Tracing Crack Detection 2

Figure above: A horizontal crack found in a DEM dataset using raytracing + voxel algorithms


Part 1 of a movie describing the results of Python Particle Post Processor.


Part 2 of a movie describing the results of Python Particle Post Processor.