Special Issue "Mechanical Properties of Technical Materials"

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

Deadline for manuscript submissions: 31 October 2020.

Special Issue Editor

Assoc. Prof. Ing. Ján Valíček
Website1 Website2
Guest Editor
Institute of Technology and Business in České Budějovice, Okružní 10, 370 01 České Budějovice, Czech Republic
Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
Interests: advanced materials; mechanical properties; surface engineering; coatings; applied physics

Special Issue Information

Dear Colleagues,

Knowledge of the mechanical properties of technical materials plays an important role in designing any component, device or structure and provides very important information about their limitations of use. In particular, engineers are interested to know when the part fails (i.e., break, or otherwise change shape) under different conditions. These include loading under tension, compression, torsion, bending, repeated cyclic loading, constant loading over long time, impact, etc. The mechanical properties of materials are not constants and they often change; therefore, there is an interest in their hardness, and how these properties change with temperature. The mechanical, physical, chemical, and technological properties of materials are often interrelated. Relations are found by analyzing the nature of properties and their relationship to the structure of substances. In practice, different combinations of properties are often required, both in terms of utility properties and in terms of the specific technology of the final production. Technical practice also imposes requirements on economic, security, aesthetic, and other aspects. This will show whether the product will have the desired characteristics and whether it will also meet the other criteria. If it is found that the required properties have not been achieved, a new design must be sought and re-tested. Papers are sought that discuss the latest research in the area of identification of mechanical properties and will also introduce destructive and nondestructive mechanical testing methods. The scope of the Special Issue encompasses predicting, modifying, and describing the mechanical behavior of technical materials.

Assoc. Prof. Ing. Ján Valíček
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 2000 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 properties
  • Identification of mechanical properties
  • Advances in mechanical properties of technical materials
  • Destructive and nondestructive testing
  • Strengthening and fracture mechanisms
  • Failure behavior

Published Papers (2 papers)

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Research

Open AccessArticle
Fracturing and Damage of 3D-Printed Materials with Two Intermittent Fissures under Compression
Materials 2020, 13(7), 1607; https://doi.org/10.3390/ma13071607 - 01 Apr 2020
Abstract
The crack propagation and failure of 3D-printed samples with prefabricated K–S fissures (a kinked fissure and a straight fissure) were observed under uniaxial compression, and the strain and displacement of the sample surface were quantified by the digital image correlation (DIC) method. The [...] Read more.
The crack propagation and failure of 3D-printed samples with prefabricated K–S fissures (a kinked fissure and a straight fissure) were observed under uniaxial compression, and the strain and displacement of the sample surface were quantified by the digital image correlation (DIC) method. The experimental results show that the branch inclination angle of the kinked fissure is an important factor affecting the crack initial position, and the evolution of the strain field during the failure process of the sample can better reflect the cracking law of the internal fissures. Furthermore, two coalescence modes are classified: Mode I is a tension–shear composite failure formed by the penetration of the tension–shear composite crack; Mode II is a tensile failure that penetrates the whole samples during the failure process without rock bridge damage. In addition, the numerical simulation results were well consistent with the cracking and failure modes. Full article
(This article belongs to the Special Issue Mechanical Properties of Technical Materials)
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Open AccessArticle
Effect of Slope Grain on Mechanical Properties of Different Wood Species
Materials 2020, 13(7), 1503; https://doi.org/10.3390/ma13071503 - 25 Mar 2020
Abstract
The aim of the presented study is to determine the relationship between mechanical parameters of selected wood species (Carya sp., Fagus sylvatica L., Acer platanoides L., Fraxinus excelsior L., Ulmus minor Mill.) used for the production of hand tools and drumsticks and [...] Read more.
The aim of the presented study is to determine the relationship between mechanical parameters of selected wood species (Carya sp., Fagus sylvatica L., Acer platanoides L., Fraxinus excelsior L., Ulmus minor Mill.) used for the production of hand tools and drumsticks and the grain deviation angle from the rectilinear pattern. Modulus of rupture (MOR), modulus of elasticity (MOE), elastic strain and work to maximum load (WML) in the three-point bending test were determined. The results obtained show that the values of all the mechanical parameters measured for hickory wood are higher than those obtained for domestic species. As the grain deviation angle from parallelism increases, the mechanical properties of all analyzed wood species decrease. The greatest influence of grain deviation angle on mechanical parameters was recorded for the work to maximum load values. Full article
(This article belongs to the Special Issue Mechanical Properties of Technical Materials)
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