A Finite Element Simulation of Nano Effects on Stress Distribution in a Below Knee Prosthetic

In the authors’ previous work, various mechanical properties such as modulus of elasticity, strength, creep, impact and fatigue behaviours for different laminates composites with and without different Nano-material additions and reinforcements with different types of fibres were tested experimentall...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2021-02, Vol.1067 (1), p.12141
Main Authors: Jweeg, Muhsin J., Hamzah, H. A., Al-Waily, Muhannad, Al-Shammari, Mohsin Abdullah
Format: Article
Language:English
Subjects:
Composite materials
Creep (materials)
Deformation
Finite element method
Knee
Laminates
Mechanical properties
Modulus of elasticity
Numerical analysis
Prostheses
Silicon dioxide
Sockets
Stress concentration
Stress distribution
Weight
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Summary:In the authors’ previous work, various mechanical properties such as modulus of elasticity, strength, creep, impact and fatigue behaviours for different laminates composites with and without different Nano-material additions and reinforcements with different types of fibres were tested experimentally. The four best lamination types and suitable Nano-material percentages were used in this work to develop a numerical investigation of a below knee prosthesis, facilitating the investigation of the effect of different Nano-material types and weight fractions on the stress and deformation in below-knee socket prosthetic structures manufactured from composite laminated materials with various reinforcement fibres. Numerical analysis using the finite element method was adopted to estimate the Von Mises stresses and deformation behaviours for the below-knee prosthetic structures, with the mechanical properties of the relevant composite materials taken from previous published work. The comparison of different Nano-material types and weight fractions suggested that the best Nano-material was SiO2 at a weight fraction of about 2% for the sample 2Perlon+2Kevlar+1Perlon+2Carbon+1Perlon+2Kevlar+2Perlon, where the stress for the socket was reduced by about 40%, with a reduction in the deformation of about 38%.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/1067/1/012141