Special Issue "Numerical and Analytical Modeling of Anisotropic Fiber-Based Materials"

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Simulation and Design".

Deadline for manuscript submissions: 31 July 2020.

Special Issue Editor

Dr. Thomas Gereke
E-Mail Website
Guest Editor
Institute of Textile Machinery and High Performance Material Technology, Technische Universität Dresden, Dresden, Germany
Interests: composites, fibers, finite element method, modeling, simulation, textile, wood

Special Issue Information

Dear Colleagues,

Fiber-based materials, such as wood, paper, textile fabrics, and composite materials, are widely used in different fields of application. These include, but are not limited to, the following:

  • Wood composites as building materials;
  • Paper- and paperboard-based products as packaging materials;
  • Textile-reinforced composites for structural applications in automotive, aerospace, and other industries;
  • Coated textiles for membrane building constructions.

Their advantages are low weight, flexible adaptability to complex geometries, and excellent specific structural properties. Their material properties are thus adjustable to the individual requirements of processing and construction. Numerical modeling on different length scales supports the design of structures and processes. Considerable progress has been made in recent years concerning simulating the mechanical responses of fiber-based anisotropic structures and materials to a variety of static and dynamic loadings, including modeling of damage and failure.

This Special Issue will focus on recent progress in the numerical and analytical modeling of anisotropic fiber-based materials. Topics can include, but are not limited to, the following:

  • Modeling textile fabrics on different length scales;
  • Process and structural models for paper- and paperboard-based materials;
  • Modeling of wood composites;
  • Laminated multi-layer composites and fiber-reinforced polymers.

I would like to invite you to submit contributions presenting your recent research articles, reviews, and brief communications revealing new trends in models for fiber-based materials.

Dr. Thomas Gereke
Guest Editor

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 papers will be 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. Materials 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 1800 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

  • Wood composites
  • Fiber-reinforced polymers
  • Textile-reinforced composites
  • Paper and paperboard
  • Simulation
  • Multi-scale modeling
  • Finite element method

Published Papers (2 papers)

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Research

Open AccessArticle
Numerical Modelling of the Mechanical Behaviour of Biaxial Weft-Knitted Fabrics on Different Length Scales
Materials 2019, 12(22), 3693; https://doi.org/10.3390/ma12223693 - 08 Nov 2019
Abstract
Weft-knitted fabrics offer an excellent formability into complex shapes for composite application. In biaxial weft-knitted fabric, additional yarns are inserted in the warp (wale-wise) and weft (course-wise) directions as a reinforcement. Due to these straight yarns, the mechanical properties of such fabrics are [...] Read more.
Weft-knitted fabrics offer an excellent formability into complex shapes for composite application. In biaxial weft-knitted fabric, additional yarns are inserted in the warp (wale-wise) and weft (course-wise) directions as a reinforcement. Due to these straight yarns, the mechanical properties of such fabrics are better than those of unreinforced weft-knitted fabrics. The forming process of flat fabrics into 3D preforms is challenging and requires numerical simulation. In this paper, the mechanical behavior of biaxial weft-knitted fabrics is simulated by means of macro- and meso-scale finite element method (FEM) models. The macro-scale modelling approach is based on a shell element formulation and offers reasonable computational costs but has some limitations by the description of fabric mechanical characteristics and forming behavior. The meso-scale modelling approach based on beam elements can describe the fabric’s mechanical and forming characteristics better at a higher computational cost. The FEM models were validated by comparing the results of various simulations with the equivalent experiments. With the help of the parametric models, the forming of biaxial weft-knitted fabrics into complex shapes can be simulated. These models help to predict material and process parameters for optimized forming conditions without the necessity of costly experimental trials. Full article
Open AccessArticle
Micromechanical Modeling of Damage Evolution and Mechanical Behaviors of CF/Al Composites under Transverse and Longitudinal Tensile Loadings
Materials 2019, 12(19), 3133; https://doi.org/10.3390/ma12193133 - 26 Sep 2019
Abstract
This paper investigates the progressive damage and failure behavior of unidirectional graphite fiber-reinforced aluminum composites (CF/Al composites) under transverse and longitudinal tensile loadings. Micromechanical finite element analyses are carried out using different assumptions regarding fiber, matrix alloy, and interface properties. The validity of [...] Read more.
This paper investigates the progressive damage and failure behavior of unidirectional graphite fiber-reinforced aluminum composites (CF/Al composites) under transverse and longitudinal tensile loadings. Micromechanical finite element analyses are carried out using different assumptions regarding fiber, matrix alloy, and interface properties. The validity of these numerical analyses is examined by comparing the predicted stress-strain curves with the experimental data measured under transverse and longitudinal tensile loadings. Assuming a perfect interface, the transverse tensile strength is overestimated by more than 180% and the transverse fracture induced by fiber failure is unrealistic based on the experimental observations. In fact, the simulation and experiment results indicate that the interface debonding arising from the matrix alloy failure dominates the transverse fracture, and the influence of matrix alloy properties on the mechanical behavior is inconspicuous. In the case of longitudinal tensile testing, however, the characteristic of interface bonding has no significant effect on the macroscopic mechanical response due to the low in-situ strength of the fibers. It is demonstrated that ultimate longitudinal fracture is mainly controlled by fiber failure mechanisms, which is confirmed by the fracture morphology of the tensile samples. Full article
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