文献类型：期刊文献

英文题名：Size effect on the compressive strength of a novel structural wood composite: High-performance wood scrimber

作者：Wu, Guofang[1] Zhang, Yahui[1] Zhong, Yong[1] Ren, Haiqing[1] Shen, Yinlan[2]

第一作者：武国芳

通信作者：Zhong, Y[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing, Peoples R China;[2]Beijing Univ Technol, Beijing, Peoples R China

年份：2024

卷号：221

外文期刊名：INDUSTRIAL CROPS AND PRODUCTS

收录：;EI(收录号：20243216847934);Scopus(收录号：2-s2.0-85200706213);WOS:【SCI-EXPANDED(收录号:WOS:001294217200001)】；

语种：英文

外文关键词：High-performance wood scrimber (HPWS); Size effect; Weakest link theory; Compressive strength; Wood composite

摘要：High-performance wood scrimber (HPWS) is a novel wood composite that uses oriented wood fiber mats from veneers as raw material instead of the small-diameter timbers used in traditional wood scrimber. HPWS exhibits excellent mechanical properties and dimensional stability, making it a promising material for load-bearing components in construction. Similar to other biomass materials, the effect of size on the strength of HPWS is critical. As the volume of a member increases, the likelihood of fatal defects within it rises, resulting in a decrease in strength. However, there is a lack of knowledge regarding the size effect on HPWS. To address this issue, HPWS specimens with a broad range of sizes were tested to determine the effect of size on their compressive strength. Then, a random simulation method was applied to further investigate the source of the strengthdependency on size and to extrapolate the size effect to a wider range of sizes. Results indicated that both the size of the cross-sectional area and length significantly influenced the compressive strength of HPWS. The size effect strength-dependency was attributed to variations in the load redistribution capability between specimens with higher and lower strengths. The size effect of HPWS was found to be weaker compared to other structural wood or bamboo-based products. Calculation methods were proposed to quantify the size effect on HPWS. These findings lay a solid foundation for advancing the use of HPWS in construction.