Design Optimization and Development of Tubular Isogrid Composites Tubes for Lower Limb Prosthesis

Junqueira, Diego Morais; Gomes, Guilherme Ferreira; Silveira, Márcio Eduardo; Ancelotti, Antônio Carlos

doi:10.1007/s10443-018-9692-2

Cited by 24 publications

(16 citation statements)

References 32 publications

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“…Many processes and materials are available today, or under development, ranging from polymers, to metals, to composites; in the case of metal additive manufacturing, the most common processes use powder bed fusion technologies, such as Electron Beam Melting or Selective Laser Melting [33]. Examples of isogrid stiffened panels or cylindrical shells fabricated by AM can be found in literature, especially for polymeric materials, such as PVC [34] or carbon fiber reinforced polymers [27,28]. An hybrid fabrication technique was used in [29] to build an isogrid-stiffened patch antenna.…”

Section: Manufacturing Techniquesmentioning

confidence: 99%

Geodesic domes for planetary exploration

Ossola

Brusa

Sesana

2020

Curved and Layered Structures

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Venus and the Ocean Worlds are emerging areas of interest for space exploration, as they can potentially host, or have hosted, conditions compatible with life. Landers and probes for in-situ exploration, however, must deal with very high external pressure, due to the environmental conditions, often resulting in thick and heavy structures. Robust, reinforced shell structures can provide a lightweight solution for the primary structure. In this frame, the isogrid layout is already a standard in aerospace, especially for flat panels or cylindrical shells. In this paper, isogrid-stiffened hemispherical shells, or “geodesic domes”, are described, focusing on the case of a concept of a Venus lander. Early design methods for both plain and geodesic domes subjected to external pressure are presented, providing design equations. Additive Manufacturing is identified as the key technology for fabricating metallic geodesic domes, due to the complexity of the internal features. Moreover, it allows to fabricate ports and integrated thermostructural systems in the same process, potentially resulting in improved performance or cost and schedule savings.

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Section: Manufacturing Techniquesmentioning

confidence: 99%

Geodesic domes for planetary exploration

Ossola

Brusa

Sesana

2020

Curved and Layered Structures

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“…Additionally, titanium is also commonly alloyed with aluminium or valadium to accommodate in low modulus elasticity as in natural bone resulting in more natural gait [17]. However, long term used of metals might cause corroded prosthesis and lead to heavier tubes [9,18].…”

Section: Materials Of Prostheticmentioning

confidence: 99%

“…Ionometic polymers is a type of electro-active polymer actuation that are electrically induced bending, possesses mechanical stability, low induced voltage and density and easy to fabricate [2]. A few scientists have conducted a research to use thermoplastic materials for prosthetic manufacture such as polypropylene phomopolymer [9]. Carbon fibers reinforced composite is proven to be three times higher elastic modulus compared to steels and wood [19].…”

Section: Materials Of Prostheticmentioning

confidence: 99%

“…Synthetic fibers is fibers reinforced with another material is also used in prosthetic where it is usually thicker but more lightweight and very strong and stiff [19]. In 1980, a flexible prosthetic foot was introduced made by two laminated carbon fibers which is more lightweight, sturdy and high strength [9]. Limb performance depends on the type of carbon fiber, weave style and resin composition.…”

Section: Materials Of Prostheticmentioning

confidence: 99%

“…Despite the early introduction of prosthetic, this industry only started to develop around the time during World War I when thousands of soldiers faced amputation due to war. In 1912, an aviator named Marcel Dessoutter lost his legs in WWI where he then designed an artificial leg by using aluminium [9].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Short Review on the Cost, Design, Materials and Challenges of the Prosthetics Leg Development and Usage

Amsan¹,

Nasution²,

Ramlee³

2019

Proceedings of the International Conference of CELSciTech 2019 - Science and Technology Track (ICCELST-ST 2019)

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Prosthetic is an artificial limb that helps an individual with amputation to restore the lost part of the body and neuroskeletomotor function. The existence of prosthetic makes it possible for individual with amputation to perform their daily task and remove the barrier of social participation. An ideal prosthetic usually constitutes characteristic as having the ability of 20° dorsiflexion, 20° eversion movement and 117% energy return efficiency. Prescription of prosthetic is restricted to follow according to amputee's functional level or K-level. Common prostheses can be classified as socketsuspended or bone-anchored prosthesis where commonly known as osseointegrated prosthesis. In the process of making prosthesis, common materials that are used widely known are metals, polymers, carbon fibers and few other materials such as Kevlar. The cost of prosthesis in nowadays is a very subjective and depending on the type of design, materials and functions. This short review paper is discussing the use of prosthesis leg for human regarding the functional level, cost, materials, challenges, current researches and future recommendations for the research and development of prosthesis leg.

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Non‐articulated hybrid glass and carbon‐reinforced shank tube for bio‐medical applications

Vasanthanathan¹,

K²,

Govinthan³

et al. 2022

Polymer Composites

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Globally, the most prevalent reasons of lower extremity amputation are diabetes, peripheral vascular disease, trauma, tumors and congenital abnormalities. Though modern lower limb prosthetic devices are available in the market, affordability for amputees in developing and underdeveloped nations is a concern, so it is required to make it more accessible with more economical options. This research is an initiative to develop a composite shank tube by filament winding technique as an alternative to conventional metallic tubes for prosthetic components. The composite materials used for this study included glass fiber/epoxy and hybrid fiber (glass + carbon)/epoxy. The composite tubes were manually fabricated and were subjected to axial compression test to estimate the loading bearing and energy absorption capacities. The composite's material properties were determined as per ASTM standards. The obtained properties and experimental data were used to carry out simulations for the composite tubes with ANSYS ® 2021 software package under quasistatic loading conditions. Based on the research that was done, the overall performance of Hybrid Fiber tube in terms of peak loads and energy absorption indexes looks good, and there is a high possibility that they could be used as a loadbearing part in a lower limb prosthetic system.

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Design Optimization and Development of Tubular Isogrid Composites Tubes for Lower Limb Prosthesis

Cited by 24 publications

References 32 publications

Geodesic domes for planetary exploration

Geodesic domes for planetary exploration

A Short Review on the Cost, Design, Materials and Challenges of the Prosthetics Leg Development and Usage

Non‐articulated hybrid glass and carbon‐reinforced shank tube for bio‐medical applications

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