Habiba Bougherara

Toronto Metropolitan University

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Emil H. Schemitsch

Western University

Radovan Zdero

Victoria Hospital

Zouheir Fawaz

Toronto Metropolitan University

Rédouane Zitoune

Institut Clément Ader

Saeid Samiezadeh

Humber College

Ihab El Sawi

Toronto Metropolitan University

Alireza Sayyidmousavi

Toronto Metropolitan University

Rad Zdero

Toronto Metropolitan University

D. C. D. Oguamanam

Toronto Metropolitan University

Kamal Kolasangiani

Toronto Metropolitan University

Cooperative Institutions

Toronto Metropolitan University

University of Toronto

St. Michael's Hospital

Institut Clément Ader

Centre National de la Recherche Scientifique

Université de Toulouse

Université Toulouse III - Paul Sabatier

Sunnybrook Health Science Centre

Western University

Health Sciences Centre

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Biomechanical design using in-vitro finite element modeling of distal femur fracture plates made from semi-rigid materials versus traditional metals for post-operative toe-touch weight-bearing

Medical Engineering & Physics (2020)

Aaron Gee Habiba Bougherara Emil H. Schemitsch Radovan Zdero

Stress shielding

Weight-bearing

Femur fracture

Femoral shaft

10.1016/j.medengphy.2020.11.015

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Citations (16)

Quasi-static analysis of hip cement spacers

Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials (2021)

Abdelhafid Mallek Abdelkader Miloudi Mokhtar Khaldi M. M. Bouziane B. Bachir Bouiadjra

10.1016/j.jmbbm.2021.104334

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Citations (4)

Computation of bone remodelling after Duracon knee arthroplasty using a thermodynamic-based model

Proceedings of the Institution of Mechanical Engineers Part H Journal of Engineering in Medicine (2011)

Habiba Bougherara S Nazgooei Alireza Sayyidmousavi František Maršík Ivo Mařík

The present study utilizes a recently developed literature model for the bone remodelling process to predict the evolution of bone density following Duracon total knee arthroplasty (TKA). In this model, which is based on chemical kinetics and irreversible thermodynamics, bone is treated as a self-organizing system capable of exchanging matter, energy, and entropy with its surroundings. Unlike previous models in which mechanical loading is regarded as the only stimulus for bone remodelling, the present model establishes a unique coupling between mechanical loading and the chemical reactions involved in the process of bone remodelling. This model was incorporated into the finite element software ANSYS by means of a macro to compute density distribution in distal femoral bone both before and after TKA. Consistent with dual-energy X-ray absorptiometry (DEXA) scans reported in the literature, the results showed that the most severe bone loss occurs in the anterior region of the distal femur and that there is more bone resorption in the lateral than the medial condyle following TKA. Furthermore, the bone density distribution predicted using the present model showed a gradual and uniform pattern and thus a more realistic bone evolution contrary to the strain energy density model, where there is no gradual bone density evolution.

Bone remodeling

Biomechanics

10.1177/0954411911401487

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Citations (3)

Development of a Robotic Additive Manufacturing Framework for Fused Deposition Modeling: Technical Considerations

Proceedings of the International Conference of Control, Dynamic systems, and Robotics (2023)

Pooyan Nayyeri Habiba Bougherara Kourosh Zareinia

Additive manufacturing, commonly referred to as 3D printing, is a rapidly growing technology that allows for the creation of three-dimensional parts in a fraction of the time required by traditional methods.Conventional 3D printers use either cartesian or delta mechanisms, which are reliable but limited in movement due to the fixed orientation of the tool head.Researchers have been working on using robotic manipulators to create new 3D printing techniques.To accomplish this, they first need to establish a robotic framework for basic 3D printing.This technical brief explains the steps for the implementation of a robotic manipulator for fused deposition modelling (FDM).The proposed approach can help other researchers develop their own robotic 3D printing framework.While many other alternatives can be utilized, the proposed methodology is not intended to be unique or optimized.However, it provides important technical details that can help to expedite the process of establishing new research projects in this field.Additionally, this brief introduces the concept of the "printability index", which can be used to create a map for positioning the build platform in the robot's workspace.

Fused Deposition Modeling

Deposition

10.11159/cdsr23.216

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Citations (2)

Processing and electrical characterization of a unidirectional CFRP composite filled with double walled carbon nanotubes

Composites Science and Technology (2012)

Ihab El Sawi Philippe Olivier Philippe Demont Habiba Bougherara

Characterization

Carbon fibers

10.1016/j.compscitech.2012.08.016

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Citations (52)

Influence of the Manufacturing Process on the Mechanical Properties of Flax/Epoxy Composites

Journal of Biobased Materials and Bioenergy (2014)

Ihab El Sawi Habiba Bougherara Rédouane Zitoune Zouheir Fawaz

This work is part of an ongoing research on the development of a bio-based material for use as an orthopedic long bone fracture plate. Specifically, the overall research effort aims at examining flax/epoxy composites as a potential material for fractured femur bone implants. The mechanical properties of unidirectional flax fiber reinforced epoxy composites manufactured under different processing conditions are investigated. Two different processes namely, Compression molding and Autoclave, were used to manufacture composites under different pressure and cure cycle temperatures and the mechanical properties obtained by both processes were compared. The longitudinal elastic modulus of the composite specimens did not change with the manufacturing condition and the value of elastic modulus was 25 GPa. However, composites cured at 110 degrees C showed a lower ultimate tensile strength of 275 MPa and their stress/strain plots exhibited a nonlinear behavior compared to composites cured at 150 degrees C which exhibited linear behavior and higher ultimate tensile strength (307 MPa). The difference is due to the presence of defects (porosities) in the composites cured at 110 degrees C and to the lower crosslink density of the epoxy resin. A similar behavior was observed for the bending properties. Furthermore, we investigated the influence of water absorption on the mechanical behavior of these composites. For all composite plates, the water uptake affected severely the composite's stiffness and reduced it from 25 GPa to 11 GPa, however the strength remained unchanged for all composites. The shear property of the composites was the most affected by the processing conditions since it is a matrix and interface dominant property. The autoclave process produced composites with the highest shear modulus (2 GPa). This shear modulus was decreased by 60% due to the water uptake.

10.1166/jbmb.2014.1410

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Citations (39)

Biomechanical effects of different loads and constraints on finite element modeling of the humerus

Computer Methods in Biomechanics & Biomedical Engineering (2023)

Sabrina Islam Kunal Manoj Gide Emil H. Schemitsch Habiba Bougherara Radovan Zdero

Currently, there is no established finite element (FE) method to apply physiologically realistic loads and constraints to the humerus. This FE study showed that 2 'simple' methods involving direct head loads, no head constraints, and rigid elbow or mid-length constraints created excessive stresses and bending. However, 2 'intermediate' methods involving direct head loads, but flexible head and elbow constraints, produced lower stresses and bending. Also, 2 'complex' methods involving muscles to generate head loads, plus flexible head and elbow constraints, generated the lowest stresses and moderate bending. This has implications for FE modeling research on intact and implanted humeri.

Biomechanics

10.1080/10255842.2023.2298371

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Citations (2)

An investigation of the damage mechanisms and fatigue life diagrams of flax fiber-reinforced polymer laminates

Journal of Materials Science (2013)

Ihab El Sawi Zouheir Fawaz Rédouane Zitoune Habiba Bougherara

Thermography

Fatigue limit

10.1007/s10853-013-7934-0

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Citations (74)