文献类型：期刊文献

中文题名：横纹压缩荷载下木材的力学性能研究进展

英文题名：Review of Mechanical Behavior of Wood under Compression Load Perpendicular-to-Grain

作者：武国芳[1] 孙竞成[1] 傅峰[1] 任海青[1]

第一作者：武国芳

机构：[1]中国林业科学研究院木材工业研究所,北京100091

年份：2022

卷号：36

期号：5

起止页码：1-8

中文期刊名：木材科学与技术

外文期刊名：Chinese Journal of Wood Science and Technology

收录：CSTPCD;;北大核心:【北大核心2020】；

基金：国家自然科学基金重大项目“木材高效利用结构调控与定向重组机制”(31890772);中央级公益性科研院所基本科研业务费专项资金“人工林木材弱相结构研究”(CAFYBB2020ZA003)。

语种：中文

中文关键词：木材横纹压缩;大变形;失效机理;理论和模型

外文关键词：wood compression perpendicular-to-grain;large deformation;failure mechanism;theory and model

分类号：S781

摘要：木材作为一种生物质材料,在横纹压缩荷载下表现出屈服点低、变形大,并存在二次应变硬化的受力特征。木材横纹受压在实际应用中较为常见且难以避免,在工程结构中如果不能妥善处理,可导致局部变形或变形不均匀等问题,威胁结构安全;在木材改性中,横纹压缩性能用于调整和优化木材压缩改性工艺;木材作为缓冲材料应用时,横纹压缩性能用于评估和优化木材的减震吸能性能:因此横纹压缩荷载下木材的力学性能研究具有重要意义。本文梳理横纹压缩荷载下木材力学性能的研究现状,包括试验研究、失效机理、有限元模型和理论模型等,总结现有研究的结论和进展,分析现有研究的不足,提出后续研究方向。
As a bio-material, wood presents the low yield strength, extra-large deformation, and twostage hardening behavior under perpendicular-to-grain compression load. The mechanical behavior of wood is quite important in many aspects: 1) building engineering, which needs be handled with great care to avoid excessive local and uneven deformation that may threaten the safety of structure;2) wood modification, which helps to improve the processing technology;3) as cushion materials, which help to evaluate and optimize its energy consumption behavior. Thus, it is essential to investigate the mechanical behavior of wood under perpendicular-to-grain compression load. This paper reviewed the research related to the behavior of wood under perpendicular-to-grain compression, including the experimental research, finite element models, and theoretical models. The shortcomings of the available research were analyzed, while suggestions for the future research were proposed.