Wood Testing, Processing and Modification—Second Edition

A Special Issue of Forests (ISSN 1999-4907) belonging to the section "Wood Science and Forest Products".

Deadline for manuscript submissions: 25 November 2026 | Viewed by 559

Editor

Special Issue Information

Dear Colleagues,

Wood-processing technology is undergoing rapid advancement toward enhanced intelligence, efficiency, environmental sustainability and energy conservation. This is a complex engineering problem that requires solving technical issues in cutting, tools, equipment and processes, among others, with breakthrough theoretical solutions.

This second edition seeks to systematically address these challenges by focusing on innovative wood-processing technologies and their fundamental scientific principles. We are collecting contributions from different disciplines, such as wood material science, wood technology, wood pathology and performance test method evaluation studies. We encourage studies from all fields, including experimental studies, monitoring approaches and models, literature reviews and surveys, to advance knowledge and adapt strategies to increase service life and performance classification of wood products for different use classes.

Dr. Carmen-Mihaela Popescu
Guest Editor

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Keywords

  • wooden products
  • wood process
  • woodcutting theory
  • woodcutting tools
  • woodworking machinery
  • intelligent manufacturing

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Published Papers (1 paper)

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Research

16 pages, 26654 KB  
Article
Development of an In Situ SEM Bending Testing Instrument for Multi-Scale Mechanical Characterization of Bamboo
by Yanan Rong, He Shao, Yu Shi, Mengqi Liu and Changyi Liu
Forests 2026, 17(8), 870; https://doi.org/10.3390/f17080870 - 26 Jul 2026
Viewed by 274
Abstract
Bamboo is a natural fiber-reinforced composite whose macroscopic mechanical properties depend on the microscale synergistic deformation of fibers and parenchyma. However, existing in situ SEM testing techniques are mainly designed for metallic tensile testing and are unsuitable for analyzing bamboo’s meso-scale behavior. To [...] Read more.
Bamboo is a natural fiber-reinforced composite whose macroscopic mechanical properties depend on the microscale synergistic deformation of fibers and parenchyma. However, existing in situ SEM testing techniques are mainly designed for metallic tensile testing and are unsuitable for analyzing bamboo’s meso-scale behavior. To address this, we developed an in situ SEM three-point bending instrument specifically for natural fiber materials. The instrument keeps the region of interest (ROI) stably centered in the SEM field of view through a stationary central indenter and symmetrically moving supports. It offers a 0–450 N load range, 0.5N force resolution, 1 μm displacement resolution, and is compatible with a Tescan Vega 4 SEM chamber. Using this instrument, in situ bending tests were performed on Moso bamboo (Phyllostachys edulis) with fiber volume fractions of 23%–42%, combined with digital image correlation for full-field strain measurement. Results show that flexural modulus, strength, and fracture work all increase significantly with fiber content. A microstructural failure classification framework was established based on in situ SEM observations, categorizing the observed failure modes according to the local arrangement of fibers and parenchyma. The proportions of these failure modes were found to be closely associated with the gradient distribution of strength and toughness across the culm wall. Three extrinsic toughening mechanisms were identified: fiber-induced crack deflection, parenchyma cell collapse densification, and fiber–parenchyma interfacial debonding. The developed instrument and analysis method offer a promising experimental platform for multi-scale mechanical characterization of natural composites. Full article
(This article belongs to the Special Issue Wood Testing, Processing and Modification—Second Edition)
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