Ferrara, Alessia Wittel, Falk K.
Published in
Holzforschung
The characterization of the wood behavior at the tissue scale is still scarcely explored compared with the macroscopic scale, especially for shear. This work focuses on the mechanical properties of tissue samples of Norway spruce (Picea abies). Tensile and shear tests were conducted in different anatomical directions and relative humidity (RH) leve...
huang, he zhu, li yuan, li jiang, jiali gao, ruiqing
The tensile mechanical behavior of water-saturated earlywood (EW) and latewood (LW) within the same growth ring of Masson pine (Pinus massoniana) was investigated in the hydrothermal environment and discussed with respect to the density and microfibril angle (MFA) of the wood specimens. The tensile modulus, tensile strength, and strain at failure o...
Zhang, Yuge Hou, Junfeng Chen, Haili Cen, Junjie Jiang, Zhihong Yu, Youming
Creep behavior of wood plays a fundamental role in precision processing of wood. In this work, experimental creep tests have been conducted to determine the influence of earlywood vessel location and moisture content on creep behavior of Quercus alba (white oak). Time-moisture superposition principle was applied to predict long-term creep behavior ...
Liszka, Aleksandra Wightman, Raymond Latowski, Dariusz Bourdon, Matthieu Krogh, Kristian B. R. M. Pietrzykowski, Marcin Lyczakowski, Jan J.
Published in
Frontiers in Plant Science
Scots pine (Pinus sylvestris L.) is an evergreen coniferous tree with wide distribution and good growth performance in a range of habitats. Therefore, wood from P. sylvestris is produced in many managed forests and is frequently used in industry. Despite the importance of pine wood, we still do not fully understand its molecular structure what limi...
Maurya, Ravi S. Misra, Krishna G. Vishwakarma, Sadhana Singh, Vikram Misra, Sandhya Yadava, Akhilesh K.
Published in
Frontiers in Forests and Global Change
Intra-annual density fluctuation (IADF) refers to anatomical changes in the tree ring caused by a sudden change in wood density triggered by a combination of climate variations and various biotic and abiotic influences. To reveal the occurrence of IADFs, we analyze the growth rings of Himalayan cedar (Cedrus deodara) growing over the Kullu region, ...
belokopytova, liliana v. zhirnova, dina f. yang, bao babushkina, elena a. vaganov, eugene a.
The quantitative description of growth rings is yet incomplete, including the functional division into earlywood and latewood. Methods developed to date, such as the Mork criterion for conifers, can be biased and arbitrary depending on species and growth conditions. We proposed the use of modeling of the statistical distribution of tracheids to det...
Liszka, Aleksandra Wightman, Raymond Latowski, Dariusz Bourdon, Matthieu Krogh, Kristian BRM Pietrzykowski, Marcin Lyczakowski, Jan J
Peer reviewed: True / Acknowledgements: We would like to acknowledge help from Dr Anna Hebda and Dr Weronika Krzeszowiec-Jeleń in collection of pine cores and Dr Bartłomiej Woś for support in selection of sampled trees. GH5, GH26, GH51 and GH115 enzymes were a kind gift from Novozymes AS. We thank Dr Dale Boorman and Dr George Atkinson (Renishaw pl...
wang, junfeng yang, kai wanzhao, li wang, xinzhou bulcke, jan van den van acker, joris
Thermal modification can increase the physical stability and impact the mechanical strength of wood. It is necessary to understand the effects of modifications on the compressive stress of wood. In this study, Douglas fir (Pseudotsuga menziessi) blocks were modified at 180 °C (TM-180 °C) and 210 °C (TM-210 °C). The compressive stress of pure earlyw...
wang, ziheng sheng, he shi, jiangtao zhang, xuefeng leng, weiqi
Furfurylated wood has many advantages, such as decay resistance, dimensional stability, hardness, etc. However, furfurylation increases the brittleness and decreases the flexural resistance of wood, which greatly limits its application. Therefore, caprolactam (CPL) is incorporated with furfuryl alcohol (FA) to improve the performance of furfurylate...
ištok, iva sedlar, tomislav orešković, gordana jambreković, branimir
This study investigated the variations in tracheid length of Pseudotsuga menziesii (Mirb.) Franco from three sites in Croatia in relation to cambium age, within- and between-site differences, and growth rate. Tracheids are the main structural element in P. menziesii wood, varying in length following different patterns that should be precisely deter...
