Validation of Finite Element Analysis for a New External Finger Fixator to Correct Flexion Deformity — A Preliminary Result

Rahman, Herman Shah Abd; Osman, Noor Azuan Abu; Abas, Wan Abu Bakar Wan; Ahmad, Tunku Sara; Ng, ES

doi:10.1007/978-3-540-69139-6_118

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…In addition, titanium dioxide (TiO 2 , anatase) was used as an additive since the incorporation of small amounts of TiO 2 (up to 5 wt%) into alumina has been shown to improve alumina densification at low temperatures (96% relative density obtained at 1450 • C with TiO 2 compared to 86.8% for undoped alumina). 38 A mix of micro-sized (98+%, anatase, 5 μm, Acros Organics) and nano-sized (≥99.5%, 21 nm, Sigma-Aldrich) anatase TiO 2 powders was then added to the alumina powders (50% of each powder to reach 5 wt% of the total alumina content).…”

Section: Ceramic Slurry Preparationmentioning

confidence: 99%

Infrared irradiation to drive phosphate condensation as a route to direct additive manufacturing of oxide ceramics

Somers,

Montón,

Özmen

et al. 2023

J Am Ceram Soc.

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This paper introduces a fast, low‐temperature, pressureless process to chemically bind ceramic parts with the help of infrared (IR) irradiation and phosphate binder condensation. Ceramic components are synthesized from slurries of ceramic powders and Al(H2PO4)3 binder that are irradiated with short‐waved IR light capable of heating the system to 350°C. This irradiation is found to be sufficient to drive phosphate condensation, binding the ceramic powders together within a matter of seconds. The IR‐irradiated components show an increase in density and Vickers hardness. Layer‐by‐layer spraying and irradiation is demonstrated as a route to additive manufacturing using various ceramic chemistries. While further optimization is needed to control desired microstructure, this process of using chemically bonded ceramic binders with IR heating for additive manufacturing shows the potential to find applications in various ceramic systems, including refractories, bone implants, electronics, and thermal barrier coatings.

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Section: Ceramic Slurry Preparationmentioning

confidence: 99%

Infrared irradiation to drive phosphate condensation as a route to direct additive manufacturing of oxide ceramics

Somers,

Montón,

Özmen

et al. 2023

J Am Ceram Soc.

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“…It is well known that finite element (FE) analysis could provide an internal stress analysis in which a simple assumption is needed to keep it under control [19]. Therefore, this study utilised FE method to analyse the external fixator.…”

Section: Fig 3 -Installation Of External Fixator Into the Tibia Bone 24 Finite Element Analysismentioning

confidence: 99%

Finite Element Analysis of Different Pin Diameter of External Fixator in Treating Tibia Fracture

Ramlee¹,

Zainudin²,

Kadir³

2021

IJIE

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Biomechanical perspective of external fixator is one of the biggest elements that should be considered in treating fracture bone. This is due to the mechanical behavior of the structure could be analyzed and optimized in order to avoid failure, increase bone fracture healing rate and prevents preterm screw loosening. There are three significant factors that affect the stability of external fixator and those are the placement of pin at the bone, configuration and components of external fixator. All these factors contribute to a question, what is the optimum pin diameter which exerts good stress distribution? To date, the research on the above-mentioned factors are limited in the literature. Therefore, this study was conducted to evaluate the unilateral external fixator with different pin sizes in treating tibia shaft fracture via the finite element method. First and foremost, the development of the tibia shaft fracture was conducted using Mimics software. The computed tomography (CT) data image was utilized to develop three-dimensional tibia bone followed by crafting fracture on the bone. Meanwhile, the unilateral external fixator was developed using SolidWorks software. In this study, five pin diameters (4.5, 5.0, 5.5, 6.0 and 6.5 mm) were developed and analyzed. Both tibia bone and external fixator were meshed in 3-matic software. Simulation of this configuration took place in a finite element software, Marc.Mentat. From the findings, it is shown that the larger diameter of pin demonstrated the lowest stress distribution. The size of the 5.5mm pin shows optimum diameter in terms of stress distribution with the value of 21.50 MPa in bone and 143.33 MPa in fixator. Meanwhile the displacement value of 1.42mm in bone and 1.20mm in fixator. In conclusion, it is suggested that the pin diameter of 5.5 mm is the most favorable option in treating tibia shaft fracture in terms of mechanical perspective.

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Validation of Finite Element Analysis for a New External Finger Fixator to Correct Flexion Deformity — A Preliminary Result

Cited by 2 publications

References 14 publications

Infrared irradiation to drive phosphate condensation as a route to direct additive manufacturing of oxide ceramics

Infrared irradiation to drive phosphate condensation as a route to direct additive manufacturing of oxide ceramics

Finite Element Analysis of Different Pin Diameter of External Fixator in Treating Tibia Fracture

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