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.