Study on the Prediction of Drilling Forces on Cortical Bone Based on Finite Element Simulation

Abstract:

The changes of drilling forces during bone drilling provide a useful index for evaluating the risk of potential damage to the bone. The aim of the work is that an elastic-plastic dynamic finite element model is used to simulate the process of a drill bit drilling through the bone. The finite element model was set up in the Abaqus6.11; the prediction model of the drilling force was gotten by using the regression orthogonal experiment and data processing software Matlab7.0. Diverse values of drilling speed, feed rate and drill diameter are important factors which will lead to changes in the drilling forces. By controlling the drilling parameters can obtain the optimal drilling force. The results show that the diameter has the greatest influence on the drilling force, the drilling speed the second, the feed rate the last.

• Periodical: Key Engineering Materials (Volumes 589-590)
• Pages: 157-162
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.589-590.157
• Online since: October 2013
• Authors: Ya Hui Hu, Qing Yun Zhang, Xiao Yu Yue
• Keywords: Bone Drilling, Drilling Force, Dynamic Finite Element Method, Orthogonal Regression Method

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