Calibrated FEM modelling of rock cutting with PDC cutter

Nina Yari*, Marcin Kapitaniak, Vahid Vaziri, Lifeng Ma, Marian Wiercigroch

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)
11 Downloads (Pure)


Complexity of bit-rock interactions and formation fracture makes rock drilling a challenging task from modelling perspective. A finite element model is developed which can plausibly capture the rock fractures while it is capable of evaluating drilling forces for various values of Rate of Penetration (ROP), bit angular velocity and cutter configuration. Firstly, experiments on a single cutter rig are performed with various drilling parameters to be compared to the proposed FE model. Prior to detailed numerical simulation, a rigorous computation test on material model characterization and the element size and type is conducted to ensure feasible and reliable simulation results. The cutting forces are analysed for different values of WOB, rake angle, initial depth of cut and cutter speed for a single-cutter linear cutting. The formation fragmentation process and computed results are comparable to laboratory tests.

Original languageEnglish
Article number16006
JournalMATEC Web of Conferences
Publication statusPublished - 2 Feb 2018
EventInternational Conference on Engineering Vibration - Sofia, Bulgaria
Duration: 4 Sept 20177 Sept 2017


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