Design of a Novel Carbon-Fiber Ankle-Foot Prosthetic using Finite Element Modeling

Hamzah, Mohsin Noori; Gatta, Antonio La

doi:10.1088/1757-899x/433/1/012056

Cited by 17 publications

(12 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This field has been using composite materials to reduce equipment weight; take as examples, bicycles, tennis racquets, skis and even racing prosthetics (Figure 45). This field uses FEM in its projects as a way to determine geometries that have high resistance and lower weight to improve the athletes' performances [253,[324][325][326][327][328][329][330].…”

Section: Sportsmentioning

confidence: 99%

Application of the Finite Element Method in the Analysis of Composite Materials: A Review

et al. 2020

View full text Add to dashboard Cite

The use of composite materials in several sectors, such as aeronautics and automotive, has been gaining distinction in recent years. However, due to their high costs, as well as unique characteristics, consequences of their heterogeneity, they present challenging gaps to be studied. As a result, the finite element method has been used as a way to analyze composite materials subjected to the most distinctive situations. Therefore, this work aims to approach the modeling of composite materials, focusing on material properties, failure criteria, types of elements and main application sectors. From the modeling point of view, different levels of modeling—micro, meso and macro, are presented. Regarding properties, different mechanical characteristics, theories and constitutive relationships involved to model these materials are presented. The text also discusses the types of elements most commonly used to simulate composites, which are solids, peel, plate and cohesive, as well as the various failure criteria developed and used for the simulation of these materials. In addition, the present article lists the main industrial sectors in which composite material simulation is used, and their gains from it, including aeronautics, aerospace, automotive, naval, energy, civil, sports, manufacturing and even electronics.

show abstract

Section: Sportsmentioning

confidence: 99%

Application of the Finite Element Method in the Analysis of Composite Materials: A Review

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Prosthetic software on the market, such as Infinity CAD systems AutoScanner & AutoSculpt [1], are commonly used in obtaining data necessary for developing or altering prostheses. There are a variety of 3D scanners, such as Biosculptor's BioScanner, BioShape Software and DSS Digital Socket System [2]. Only the companies who manufacture the CAD/CAM prosthetic software really use it to create new prosthetic components [3].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the mechanical performance of the composite prosthetic keel based on the static load: a computational analysis

Subhi

Hussein

Al-Hamadani

et al. 2022

EEJET

View full text Add to dashboard Cite

In this paper, the numerical simulation of the mechanical performance of a composite prosthetic keel structure under static load has been explored, and the findings of this inquiry have been included. The prosthetic keel is constructed from an epoxy and glass fiber composite, 3 percent weight (MWCNTs with SiC), and a carbon nanotube, which are utilized in conjunction with other materials to create the structure. The force that is applied in this example is 1,000 N, and it is applied in accordance with the boundary condition that has been previously established in this case. The ANSYS modeling software package was used to create the prosthetic keel model, which was meshed and created. Because of the total deformation, the fundamental simulation results of the prosthetic keel model have been converged in line with the total deformation, which was used as a reference to determine the total deformation. The major outcome of the current numerical analysis has been successfully validated by considering the findings of the earlier experimental study. The mechanical performance of the composite prosthetic keel structure is determined by four primary criteria, the results of which are based on the findings. Aspects to analyze include equivalent elastic strain, three-axis directed deformation, total deformation, and equivalent stress (von Mises). Although only 0.00058 mm total deformation is created by the imposed static load of 1,000 N (the least attainable value), it represents the largest total deformation. The equivalent stress (von Mises) responded to the load with a response of 0.045 MPa, which is quite small. Furthermore, the equivalent elastic strain has also been undertaken and it resulted in a value of elastic strain of 3.4*10^7.

show abstract

“…Additionally, this manuscript presents an avenue for the evaluation of the stress–strain characteristics of a prosthetic foot through the stance phase of walking, in order to assist the development of structurally robust devices. Numerous efforts towards the estimation of the stress distribution of the prosthetic feet were performed with approximations to its geometry and non‐linear mechanical behavior 28,37–40 . The novelty of this work lies in the use of a comprehensive non‐linear FE approach to present an a priori technique for the determination of the magnitude and distribution of a series of stress–strain parameters namely, the von‐Mises stress, the von‐Mises strain, the longitudinal and shear stresses with respect to specified reference axes and planes, across the multiple components of the prosthetic foot.…”

Section: Introductionmentioning

confidence: 99%

“…Numerous efforts towards the estimation of the stress distribution of the prosthetic feet were performed with approximations to its geometry and non-linear mechanical behavior. 28,[37][38][39][40] The novelty of this work lies in the use of a comprehensive non-linear FE approach to present an a priori technique for the determination of the magnitude and distribution of a series of stress-strain parameters namely, the von-Mises stress, the von-Mises strain, the longitudinal and shear stresses with respect to specified reference axes and planes, across the multiple components of the prosthetic foot. The overarching objective is to propose the non-linear FE approach as a tool for an accurate evaluation of the aforementioned parameters to potentially aid in the design, analysis and prescription of ESAR prosthetic feet.…”

Section: Introductionmentioning

confidence: 99%

Energy storage and stress–strain characteristics of a prosthetic foot: a priori design and analysis with experiments

Balaramakrishnan

Natarajan

Sujatha

2022

Numer Methods Biomed Eng

View full text Add to dashboard Cite

This work proposes an experimentally validated numerical approach for a systematic a priori evaluation of the energy storage and stress-strain characteristics of a prosthetic foot during the stance phase of walking. Boundary conditions replicating the rocker based inverted pendulum model were incorporated. The mechanically complex Ottobock Solid Ankle Cushioned Heel (SACH) foot was opted as the test device. A non-linear finite element (FE) model of the device was developed inclusive of its sources of non-linearity. A custom rig was fabricated to investigate the prosthetic foot's mechanics in a gait analysis facility and experimentally validate the finite element approach. The numerical and experimental outcomes showed fair agreement, with the centre of pressure at the foot-floor interface deviating by 1.56 mm at the instance of highest strain. The magnitude and the distribution of the energy stored and a series of stress and strain parameters were analyzed for the test device using the proposed approach. The novel methodology proposed may act as an effective tool for the design, analysis, and prescription of energy storage and return prosthetic feet.

show abstract

Design of a Novel Carbon-Fiber Ankle-Foot Prosthetic using Finite Element Modeling

Cited by 17 publications

References 4 publications

Application of the Finite Element Method in the Analysis of Composite Materials: A Review

Application of the Finite Element Method in the Analysis of Composite Materials: A Review

Investigation of the mechanical performance of the composite prosthetic keel based on the static load: a computational analysis

Energy storage and stress–strain characteristics of a prosthetic foot: a priori design and analysis with experiments

Contact Info

Product

Resources

About