1.Research Institute of Wood Industry，Chinese Academy of Forestry，Beijing 100091，China
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武国芳,孙竞成,傅峰等.横纹压缩荷载下木材的力学性能研究进展[J].木材科学与技术,2022,36(05):1-8.
WU Guo-fang,SUN Jing-cheng,FU Feng,et al.Review of Mechanical Behavior of Wood under Compression Load Perpendicular-to-Grain[J].Chinese Journal of Wood Science and Technology,2022,36(05):1-8.
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。,2
As a bio-material, wood presents the low yield strength, extra-large deformation, and two-stage 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.
木材横纹压缩大变形失效机理理论和模型
wood compression perpendicular-to-grainlarge deformationfailure mechanismtheory and model
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