Force Analysis of Orthogonal Cutting of Bovine Cortical Bone

Sui, Jianbo; Sugita, Naohiko; Ishii, Kaneo; Harada, Kensuke; Mitsuishi, Mamoru

doi:10.1080/10910344.2013.837355

Cited by 32 publications

(17 citation statements)

References 14 publications

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“…[9] [10] found that the cutting mode changes from continuous to fracture chip type at a certain cutting depth. There is no known study on the temperature measurement of the orthogonal cutting of bone.…”

Section: Introductionmentioning

confidence: 99%

Orthogonal cutting of cortical bone: Temperature elevation and fracture toughness

Feldmann

Ganser

Nolte

et al. 2017

International Journal of Machine Tools and Manufacture

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During surgical procedures, the heat development of bone cutting can lead to thermal cell necrosis and secondary implant instability. Therefore, fundamental knowledge on heat development and temperature control is crucial. This paper investigates the basic principles of the machining of cortical bone in an orthogonal cutting process. Cutting forces, temperature elevation and chip formation were measured in real time for two different rake angles and six different cutting depths. A non-linear relationship between cutting depth and cutting forces as well as temperature elevation was found. A linear correlation between cutting forces and temperature elevation of both bone chip and workpiece was determined (R 2 = 0.8697) An increasing rake angle lowered cutting forces and temperature elevations significantly and was explained using a fracture mechanics approach. Additionally, a new method to calculate the fracture toughness of (quasi-)brittle materials from orthogonal cutting tests was introduced. Recent advances in numerical modeling of bone cutting have been summarized by Marco et al. [15] but there are only limited models for the cutting of brittle or quasi-brittle materials [16].However, compared to metals, cortical bone is a very different material with a quasi-brittle and not ductile behavior. It is anisotropic with osteons (∅ 200 µm)

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Section: Introductionmentioning

confidence: 99%

Orthogonal cutting of cortical bone: Temperature elevation and fracture toughness

Feldmann

Ganser

Nolte

et al. 2017

International Journal of Machine Tools and Manufacture

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“…In the case of metals and polymers, very good correlations have been reported (Patel et al, 2009a). Therefore, it is worth extending this approach to the case of bone to determine fracture toughness values, as acknowledged by Sui et al (2013).…”

Section: Bone Cutting and Its Relationship To Fracture Mechanicsmentioning

confidence: 97%

“…Jacobs et al (1974) demonstrated the low applicability of Merchant's model (developed for metal cutting, Merchant, 1945aMerchant, , 1945b for prediction of cutting forces with respect to cutting direction relative to the dominant osteon direction. In a recent work, Sui et al (2013) developed an analysis of variance (ANOVA) and regression analysis to study the effects of cutting conditions on cutting and thrust forces based on a full factorial design. The suitability of Merchant's analysis for calculating cutting force with respect to rake angle and feed was evaluated through comparison with experiments.…”

Section: Orthogonal Cuttingmentioning

confidence: 99%

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A review on recent advances in numerical modelling of bone cutting

Marco

Rodríguez-Millán

Santiuste

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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“…The biomechanics of cutting processes is further complicated by the range of complex interactions taking place at the tool-bone interface, particularly when three-dimensional cutting processes such as sawing (James et al, 2014), drilling [4] and burring [5] are considered. Both experimental and computational models of two-dimensional orthogonal cutting are widely used as a platform to investigate the influence of key cutting parameters, such as tool geometry, cutting depth and/or feed-rate, on overall cutting performance [6][7][8][9][10]. However, the vast majority of these studies have focussed on cutting process in cortical bone, and to date, there is a distinct lack of studies examining the biomechanics of cutting in trabecular bone [11].…”

Section: Introductionmentioning

confidence: 99%

High-Speed Cutting of Synthetic Trabecular Bone– A Combined Experimental-Computational Investigation

O'Neill¹,

Vaughan²

2021

Preprint

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Orthopaedic surgical cutting instruments are required to generate sufficient forces to penetrate bone tissue, while minimizing the risk of thermal and mechanical damage to the surrounding environment. This study presents a combined experimental-computational approach to deter-mine relationships between key cutting parameters and overall cutting performance of a polyu-rethane-based synthetic trabecular bone analogue under orthogonal cutting conditions. An ex-perimental model of orthogonal cutting was developed, whereby an adaptable cutting tool fix-ture driven by a servo-hydraulic uniaxial test machine was used to carry out cutting tests on Sawbone® trabecular bone analogues. A computational model of the orthogonal cutting process was developed using Abaqus/Explicit, whereby an Isotropic Hardening Crushable Foam elas-tic-plastic model was used to capture the complex post-yield behaviour of the synthetic trabecu-lar bone. It was found that lower tool rake-angles resulted in the formation of larger discontin-uous chips and higher cutting forces, while higher rake angles tended to lead to more continu-ous chip formation and lower cutting forces. The computational modelling framework provided excellent predictions of both chip formation and axial cutting forces over the wide range of cut-ting parameters, when compared to experimental observations. This represents the first experi-mentally-validated computational modelling framework for orthogonal cutting of trabecular bone and excellent potential to be applied to more complex three-dimensional cutting processes in the future.

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Force Analysis of Orthogonal Cutting of Bovine Cortical Bone

Cited by 32 publications

References 14 publications

Orthogonal cutting of cortical bone: Temperature elevation and fracture toughness

Orthogonal cutting of cortical bone: Temperature elevation and fracture toughness

A review on recent advances in numerical modelling of bone cutting

High-Speed Cutting of Synthetic Trabecular Bone– A Combined Experimental-Computational Investigation

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