Development and Calibration of DEM Materials Based on Rock Penetration Drillibility Parameters

Distinct Element Models (DEM) are a class of material models that represent the material as a domain of small elastic balls bonded by non-linear elastic springs with defined shear and tensile bond strengths. A part of this internship is a follow up work based on work done by another member of Advanced Drilling Group (ADG) member during his internship which was focused on researching a number of rock analogue materials and measuring 8 drilibility parameters, proposed by Baker-Hughes [2], for them. As a follow up to this work, the measured drillibility parameters are going to be used as a reference for creating DEM rock type materials. The standard procedure recommended in the PFC2d library [7] is going to be modified to be able to match the as many of drillibility parameters possible. These DEM materials can be used later in the rock cutting DEM toolkit [3] that has been already developed by this intern to further study the behavior of different rock types in a cutting phenomenon. l

Faculty Supervisor:

Stephen Butt

Student:

Partner:

Itasca Consulting Group Inc

Discipline:

Engineering

Sector:

Construction; Technology

University:

Memorial University of Newfoundland

Program: