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The Impact of Laminations on the Mechanical Strength of Carbon-Fiber Composites for Prosthetic Foot Fabrication

Crystals (Basel), 2022-10, Vol.12 (10), p.1429 [Peer Reviewed Journal]

COPYRIGHT 2022 MDPI AG ;2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 2073-4352 ;EISSN: 2073-4352 ;DOI: 10.3390/cryst12101429

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  • Title:
    The Impact of Laminations on the Mechanical Strength of Carbon-Fiber Composites for Prosthetic Foot Fabrication
  • Author: Sehar, Bakhtawar ; Waris, Asim ; Gilani, Syed Omer ; Ansari, Umar ; Mushtaq, Shafaq ; Khan, Niaz B ; Jameel, Mohammed ; Khan, M. Ijaz ; Bafakeeh, Omar T ; Tag-ElDin, El Sayed Mohamed
  • Subjects: Amputation ; Artificial legs ; Carbon fibers ; carbon-fiber composites ; Composite materials ; deformation rate ; Design ; Design and construction ; Epoxy resins ; Fiber composites ; Hand lay-up ; Health aspects ; Impact resistance ; Laminates ; Loading rate ; Manufacturing ; Materials ; Mechanical properties ; Prostheses ; prosthetic foot ; Tensile strength ; Tensile tests
  • Is Part Of: Crystals (Basel), 2022-10, Vol.12 (10), p.1429
  • Description: Carbon-fiber composites are considered to be one of the suitable materials for the fabrication of prosthetic feet. However, commercially available composites-based prosthetic foot designs present several problems for lower limb amputees, such as low tensile strength, reduced impact resistance, high cost, and weight structure. Modulating the mechanical properties of carbon-fiber composites using a simplified method can help reduce these issues. Therefore, our present research aims to identify the impact of increasing the concentration of carbon fiber in the fabrication of carbon-fiber composites by using the hand layup method without the vacuum bagging technique. To improve the mechanical strength of carbon-fiber laminates, an increasing number of carbon-fiber layers are used in sample preparation. This study aims to determine the tensile strength of the laminates with a different number of carbon-fiber laminations. For the preparation of the sample specimen, black 100% 3 K 200 gsm carbon fiber with a cloth thickness of 0.2 mm and tensile strength of 4380 Mpa was laminated with two parts of epoxy resin Araldite® LY556 and Aradur hardener at a ratio of 100:30 to make the test specimen. The results indicated an overall improvement in the tensile strength of carbon-fiber laminates owing to the increase in the number of carbon-fiber layers in successive samples. The maximum achieved tensile strength through the present experimental protocol is 576.079 N/mm2, depicted by a prepared specimen of 10 layers of carbon fiber. Secondly, an increase in the deformation rate has also been observed by increasing the loading rate from 2 mm/min to 5 mm/min during the tensile testing of fabricated samples. These sample carbon-fiber composites can be used in the fabrication of prosthetic feet by controlling the experimental conditions. The fabricated prosthetic foot will assist in rehabilitating lower-limb amputees.
  • Publisher: Basel: MDPI AG
  • Language: English
  • Identifier: ISSN: 2073-4352
    EISSN: 2073-4352
    DOI: 10.3390/cryst12101429
  • Source: ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central
    DOAJ Directory of Open Access Journals
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