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Polymers
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Mechanical Response of Fibre-Reinforced Polymers II
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Mechanical Response of Fibre-Reinforced Polymers II

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Fibers".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 2890

Special Issue Editors

Prof. Dr. María del Carmen Serna Moreno

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Guest Editor
Instituto de Investigación Aplicada a la Industria Aeronáutica, Escuela de Ingeniería Industrial y Aeroespacial de Toledo, Universidad de Castilla-La Mancha, Campus Fábrica de Armas, Av. Carlos III, 45004 Toledo, Spain
Interests: strength of materials; continuum mechanics; biaxial testing; pseudo-ductility
Special Issues, Collections and Topics in MDPI journals
Dr. Sergio Horta Muñoz

E-Mail Website
Guest Editor
Escuela de Ingeniería Industrial y Aeroespacial de Toledo, Instituto de Investigación Aplicada a la Industria Aeronáutica (INAIA), Departamento de Mecánica Aplicada e Ingeniería de Proyectos, Universidad de Castilla-La Mancha, Av. Carlos III, Real Fábrica de Armas, 45004 Toledo, Spain
Interests: fibre-reinforced composites; mechanical characterization; multiaxial loading; numerical modelling; damage mechanics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue on the mechanical response of fibre-reinforced polymer-based materials will contain original research and review papers on key topics, including:

  • Industrial applications: aerospace, ground-based transportation, marine, renewable energies, civil engineering, sports and leisure, medical, agricultural applications;
  • Materials: fibre-reinforced polymers, prepregs;
  • Structural behaviour: uniaxial testing, bending, impact, multiaxial testing, non-standard experimental methods, anisotropy, fracture and damage, multiscale modelling, short and long fibre composites, buckling and stability, pseudo-ductile composites, application of numerical techniques.

This Special Issue focuses on experimental, numerical and analytical studies on fibre-reinforced polymer-based materials with structural applications, with a special emphasis on the physics that underlies their mechanical behaviour. In addition to the topics already listed, the Special Issue may also being together the subjects of materials’ strength and continuum mechanics for practical applications, including constitutive equations, optimization techniques, the finite element method (FEM) and the application of novel experimental methodologies. Both original contributions and reviews are welcome.

Prof. Dr. María del Carmen Serna Moreno
Dr. Sergio Horta Muñoz
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • mechanical response
  • industrial applications
  • structural behaviour
  • polymers composites
  • experimental testing
  • fracture
  • damage
  • buckling
  • pseudo-ductility
  • FEM

Published Papers (2 papers)

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Research

22 pages, 6775 KiB  
Article
Effects of Slit Edge Notches on Mechanical Properties of 3D-Printed PA12 Nylon Kirigami Specimens
by Jing Shu, Junming Wang, Zheng Li and Kai-yu (Raymond) Tong
Polymers 2023, 15(14), 3082; https://doi.org/10.3390/polym15143082 - 18 Jul 2023
Cited by 1 | Viewed by 1108
Abstract
Kirigami structures, a Japanese paper-cutting art form, has been widely adopted in engineering design, including robotics, biomedicine, energy harvesting, and sensing. This study investigated the effects of slit edge notches on the mechanical properties, particularly the tensile stiffness, of 3D-printed PA12 nylon kirigami [...] Read more.
Kirigami structures, a Japanese paper-cutting art form, has been widely adopted in engineering design, including robotics, biomedicine, energy harvesting, and sensing. This study investigated the effects of slit edge notches on the mechanical properties, particularly the tensile stiffness, of 3D-printed PA12 nylon kirigami specimens. Thirty-five samples were designed with various notch sizes and shapes and printed using a commercial 3D printer with multi-jet fusion (MJF) technique. Finite element analysis (FEA) was employed to determine the mechanical properties of the samples computationally. The results showed that the stiffness of the kirigami samples is positively correlated with the number of edges in the notch shape and quadratically negatively correlated with the notch area of the samples. The mathematical relationship between the stretching tensile stiffness of the samples and their notch area was established and explained from an energy perspective. The relationship established in this study can help fine-tune the stiffness of kirigami-inspired structures without altering the primary parameters of kirigami samples. With the rapid fabrication method (e.g., 3D printing technique), the kirigami samples with suitable mechanical properties can be potentially applied to planar springs for hinge structures or energy-absorbing/harvesting structures. These findings will provide valuable insights into the development and optimization of kirigami-inspired structures for various applications in the future. Full article
(This article belongs to the Special Issue Mechanical Response of Fibre-Reinforced Polymers II)
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14 pages, 4870 KiB  
Article
Effect of Nanometric Particles of Bentonite on the Mechanical Properties of a Thermoset Polymeric Matrix Reinforced with Hemp Fibers
by Meylí Valin Fernández, María José Ahumada González, Rolando Briones Oyanadel, José Luis Valin Rivera, Angel Rodríguez Soto, Alvaro González Ortega, Cristobal Galleguillos Ketterer, Alexander Alfonso Alvarez, Francisco Rolando Valenzuela Diaz and Gilberto García del Pino
Polymers 2023, 15(6), 1571; https://doi.org/10.3390/polym15061571 - 22 Mar 2023
Cited by 3 | Viewed by 1418
Abstract
The influence of the addition of bentonite nanoparticles on the tensile and flexural strength of a thermosetting polymer matrix composite material reinforced with hemp fibers was de-terminated. All composites were manufactured with 5% of bentonite in the polymer mass–weight ratios and 10 to [...] Read more.
The influence of the addition of bentonite nanoparticles on the tensile and flexural strength of a thermosetting polymer matrix composite material reinforced with hemp fibers was de-terminated. All composites were manufactured with 5% of bentonite in the polymer mass–weight ratios and 10 to 45 wt% of fibers with a step of 5%. For mechanical characterization, tensile and flexural tests were performed: scanning electron microscopy and energy-dispersive X-ray spectroscopy analyses were carried out. The tensile strength of the samples containing bentonite compared to the polymer samples with the fiber addition was affected for all fiber addition percentages, except for 35% while the flexural resistance improved with the addition of bentonite in the percentages of 20, 30, 35, and 45% of fiber addition. With the addition of bentonite, the maximum values of tensile and flexural strength were both obtained for the 35% addition of fibers, with values of 34.28 MPa and 98.04 MPa, respectively. The presence of bentonite favored the rigidity of the material to traction and bending, which was reflected through an increase in the elastic modulus compared to the composite that only had fiber. The maximum values obtained were 9065 MPa in tension and 8453 MPa in flexion for the 40% and 35% of addition of fiber, respectively. Microscopy showed a good distribution of fibers in the matrix, the absence of internal porosities, and a good interaction between matrix and reinforcement. Full article
(This article belongs to the Special Issue Mechanical Response of Fibre-Reinforced Polymers II)
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