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Polymers
Special Issues
Mechanical Properties and Structure of Polymers and Polymer Composites
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Mechanical Properties and Structure of Polymers and Polymer Composites

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

Deadline for manuscript submissions: closed (25 February 2024) | Viewed by 892

Special Issue Editors

Dr. Francisco Maciel Monticeli

E-Mail Website
Guest Editor
Department of Aerospace Structures and Materials, Faculty of Aerospace Engineering, Delft University of Technology, Delft, The Netherlands
Interests: composite materials; fatigue; fractography; Artificial Intelligence; crack propagation; process-property-structure
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Heitor Luiz Ornaghi Júnior

E-Mail Website
Guest Editor
Mantova Indústria de Tubos Plásticos Ltda., Caxias do Sul, Rio Grande do Sul, Brazil
Interests: composites; creep; physical-chemistry; relaxation processes; artificial neural networks; hybrid composites
Special Issues, Collections and Topics in MDPI journals
Dr. Luis Felipe Pupim dos Santos

E-Mail Website
Guest Editor
Instituto de Pesquisas Tecnológicas (IPT), Laboratório de Estruturas Leves (LEL), Departamento de Materiais Avançados, São José dos Campos, SP, Brasil
Interests: thermoplastic composite; thermal properties; nanostroctured composites; carbon nanotubes

Special Issue Information

Dear Colleagues,

This Special Issue "Mechanical Properties and Structure of Polymers and Polymer Composites" delves into the realm of advanced materials crucial to modern industrial applications. Polymers and polymer composites, extensively utilized across industries, offer a unique blend of versatility, durability, and design flexibility. This Special Issue spotlights the intersection of mechanical properties and structural composition, unraveling the intricate interplay between material behavior and processing techniques. Notably, the importance of process–structure–property performance demands an in-depth understanding of manufacturing variables connected to respective mechanical responses. Additionally, fractography and fracture mechanics unveil the complexities of failure mechanisms, guiding material enhancement and safety assurance. Furthermore, structural characterization techniques provide invaluable insights into micro–macro relationships, enhancing composite performance. To fully comprehend the impact of fractures on structural applications, a thorough analysis of their effects in static, fatigue, and creep phenomena is necessary. For that purpose, this Special Issue navigates the essential facets of polymers and polymer composites, catering to researchers and practitioners striving to unlock novel applications and elevate industrial standards.

Dr. Francisco Maciel Monticeli
Prof. Dr. Heitor Luiz Ornaghi Júnior
Dr. Luis Felipe Pupim dos Santos
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

  • polymers
  • polymer composite
  • process–structure–property
  • fractography
  • fracture mechanics
  • structural characterization
  • fracture and fatigue
  • creep
  • stress relaxation

Published Papers (1 paper)

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Research

28 pages, 40866 KiB  
Article
Characterization and Simulation of the Interface between a Continuous and Discontinuous Carbon Fiber Reinforced Thermoplastic by Using the Climbing Drum Peel Test Considering Humidity
by Nicolas Christ , Benedikt M. Scheuring , Christoph Schelleis , Wilfried V. Liebig , John Montesano, Kay A. Weidenmann  and Jörg Hohe 
Polymers 2024, 16(7), 976; https://doi.org/10.3390/polym16070976 - 3 Apr 2024
Viewed by 662
Abstract
The objective of this paper is to investigate the debonding behavior of the interface between continuously and discontinuously fiber reinforced thermoplastics using the climbing drum peel test. The study emphasizes on the importance of considering different climatic boundary conditions on the properties of [...] Read more.
The objective of this paper is to investigate the debonding behavior of the interface between continuously and discontinuously fiber reinforced thermoplastics using the climbing drum peel test. The study emphasizes on the importance of considering different climatic boundary conditions on the properties of thermoplastics. Specimens with varying moisture contents, from 0m.% up to above 6m.% are prepared and tested. It is observed that an increase in moisture content from 0m.% to 2m.% results in an increase of the fracture surface energy from 1.07·103J/m2 to 2.40·103J/m2 required to separate the two materials, but a further increase in moisture to 6.35m.% conversely results in a subsequent decrease of the required energy to 1.91·103J/m2. The study presents an explanatory model of increasing plasticization of the polymer due to increased polymer chain mobility, which results in more deformation energy being required to propagate the crack, which is corroborated in SEM investigations of the fracture surface. A further increase in humidity leads to polymer degradation due to hydrolysis, which explains the subsequent reduction of the fracture energy. The experimental set up is modeled numerically for the first time with cohesive surfaces, which could successfully reproduce the effective force-displacement curve in the experiment by varying the interface parameters in the model over an influence length, allowing the conclusion of a process induced variation in the interface properties over a specific consolidation length. Full article
(This article belongs to the Special Issue Mechanical Properties and Structure of Polymers and Polymer Composites)
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