2134/16549
Waqas Lughmani
Waqas
Lughmani
Kaddour Bouazza-Marouf
Kaddour
Bouazza-Marouf
Ian A. Ashcroft
Ian A.
Ashcroft
Drilling in cortical bone: a finite element model and experimental investigations
Loughborough University
2014
Bone drilling
Orthopaedic surgery
Finite element
Experimental testing
Yield surface
Mechanical Engineering not elsewhere classified
Mechanical Engineering
2014-12-23 09:47:06
Journal contribution
https://repository.lboro.ac.uk/articles/journal_contribution/Drilling_in_cortical_bone_a_finite_element_model_and_experimental_investigations/9566627
Bone drilling is an essential part of many orthopaedic surgery procedures, including
those for internal fixation and for attaching prosthetics. Estimation and control of
bone drilling forces are critical to prevent drill-bit breakthrough, excessive heat
generation, and mechanical damage to the bone. An experimental and
computational study of drilling in cortical bone has been conducted. A 3D finite
element (FE) model for prediction of thrust forces experienced during bone drilling
has been developed. The model incorporates the dynamic characteristics involved in
the process along with geometrical considerations. An elastic-plastic material model
is used to predict the behaviour of cortical bone during drilling. The average critical
thrust forces and torques obtained using FE analysis are found to be in good
agreement with the experimental results.