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Applied Sciences
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Mechanical Properties of Wood
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Mechanical Properties of Wood

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: closed (30 March 2023) | Viewed by 4630

Special Issue Editors

Dr. Milda Jucienė

E-Mail Website
Guest Editor
Institute of Architecture and Construction, Kaunas University of Technology, 44405 Kaunas, Lithuania
Interests: composite and finishing materials for buildings; sustainability and environmentally friendly solutions for engineering
Dr. Vaida Dobilaite

E-Mail Website
Guest Editor
Institute of Architecture and Construction, Kaunas University of Technology, Tunelio St. 60, Lt – 44405 Kaunas, Lithuania
Interests: construction materials; composites for buildings; new concepts and design solutions for the buildings

Special Issue Information

Dear Colleagues,

Wood is a popular renewable resource that is widely used in many innovative solutions in various industries. This Special Issue will be dedicated to effective and innovative wood and composite materials testing methods, and functional and protective wood finishing.

This Special Issue will publish high-quality, original research papers, in the overlapping fields of:

  • Wood physics and mechanics;
  • Wood construction;
  • Wood protection and modification, durability;
  • Wood engineering;
  • Surface quality;
  • Engineered wood products and composites;
  • Wood structure and properties;
  • Mechanical wood processing;
  • Wood-based materials.

Dr. Milda Jucienė
Dr. Vaida Dobilaite
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. Applied Sciences 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 2400 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
  • technological properties
  • durability
  • composite materials
  • finishing

Published Papers (3 papers)

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Research

11 pages, 1969 KiB  
Article
Sound Wave Absorption Coefficient and Sound Velocity in Thermally Modified Wood
by Przemysław Mania, Artur Flach and Marta Pilarska
Appl. Sci. 2023, 13(14), 8136; https://0-doi-org.brum.beds.ac.uk/10.3390/app13148136 - 13 Jul 2023
Cited by 1 | Viewed by 1217
Abstract
The present work analyses the absorption coefficient of sound waves and the speed of sound propagation in thermally modified wood. The high resistance to weathering, fungi, and better dimensional stability, and therefore the broad physical properties of this material, are well known. However, [...] Read more.
The present work analyses the absorption coefficient of sound waves and the speed of sound propagation in thermally modified wood. The high resistance to weathering, fungi, and better dimensional stability, and therefore the broad physical properties of this material, are well known. However, the literature lacks numerous analyses of its acoustic characteristics. During the study, high-density species, such as oak, red oak, and beech were used, in contrast to pine. Pine wood during this test was characterised by a most rapid increase in the sound absorption coefficient value, in the range of 1000–6300 Hz, and reached the highest value from all wood species. Among all species, the highest value of the examined parameter was obtained for beech wood and pine wood, which were 0.213 (at frequency 3 kHz) and 0.183 (at 6.3 kHz), respectively. The sound velocity decreased for all species only in the tangential direction. Full article
(This article belongs to the Special Issue Mechanical Properties of Wood)
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12 pages, 2621 KiB  
Article
An Investigation of the Impact of Water on Certain of the Mechanical and Physical Properties of Laminated Veneer Lumber (LVL) as Used in Construction
by Milda Jucienė, Vaida Dobilaitė and Darius Albrektas
Appl. Sci. 2023, 13(2), 925; https://0-doi-org.brum.beds.ac.uk/10.3390/app13020925 - 9 Jan 2023
Cited by 2 | Viewed by 1242
Abstract
Timber and timber products are renewable materials that, due to their durability and strength properties, meet the requirements of the construction industry, are widely used in buildings. An analysis of the scientific literature has shown that there is a lack of detailed research [...] Read more.
Timber and timber products are renewable materials that, due to their durability and strength properties, meet the requirements of the construction industry, are widely used in buildings. An analysis of the scientific literature has shown that there is a lack of detailed research that fully investigates the influence of the rate of increase of the moisture content of the timber on the mechanical and, especially, the strength properties of the LVL panels. Upon immersion into water of the bottom of the specimen, the water starts rising quite quickly at the edge of the specimen, and the first six hours are the most critical. The levels of water rise inside the LVL specimen were less significant than at the edges. It was found that water significantly affects the bending strength of the panels, which, when the strength of the wet panel compared to the strength of the dry panel, decreases to 45% after one soak cycle and almost to 52% after two soak cycles. The tensile strength of the wet specimens is ~40% less than that of the dry specimens. The strength of the panels that were dried back to their initial state was found to be sufficient again, different from the initial strength only within the error limits; the strength properties of the building structure will not be affected. Full article
(This article belongs to the Special Issue Mechanical Properties of Wood)
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13 pages, 3576 KiB  
Article
Parallel-to-Grain Compressive and Tensile Behavior of Paulownia Wood at Elevated Temperatures
by Lingfeng Zhang, Kaixi Chen, Biao Xu, Yan Liu and Kai Guo
Appl. Sci. 2022, 12(23), 12118; https://0-doi-org.brum.beds.ac.uk/10.3390/app122312118 - 26 Nov 2022
Cited by 1 | Viewed by 1699
Abstract
Fast-grown Paulownia wood is extensively used as construction material in China. The mechanical properties of Paulownia wood at room temperature are well known. However, investigations of its mechanical behavior at elevated temperatures are very limited. To address this issue, thermal analysis was conducted [...] Read more.
Fast-grown Paulownia wood is extensively used as construction material in China. The mechanical properties of Paulownia wood at room temperature are well known. However, investigations of its mechanical behavior at elevated temperatures are very limited. To address this issue, thermal analysis was conducted to investigate the mass loss and reaction heat during water evaporation and thermal decomposition. Moreover, parallel-to-grain compressive and tensile tests were conducted on clear Paulownia wood specimens at temperatures ranging from 20 °C to 220 °C. It was found that kinking is the main failure mode of the compressive specimens, while transverse rupture was frequently observed in the tensile specimens. At 220 °C, the retention rates of the average parallel-to-grain compressive and tensile strengths were 38% and 42%, respectively. However, the strengths significantly increased as the temperature increased from 100 °C to 140 °C, due to the moisture evaporation and the hardening of the dry lignin. The design curve suggested by EN 1995-1-2 was very conservative (as much as 76%) at estimating the parallel-to-grain compressive strengths. However, the design curve was slightly nonconservative (less than 6%) at predicting the parallel-to-grain tensile strengths when the temperature was below 60 °C. Furthermore, a significant reduction (approximately 40%) in the deformation capacity was found when the temperature was higher than 180 °C. Full article
(This article belongs to the Special Issue Mechanical Properties of Wood)
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