木材压缩吸能特性及其压缩力学湿热效应研究进展OA北大核心CHSSCDCSCD
Research Progress in Energy Absorption Characteristics of Wood and Its Hygrothermal Effect
木材是一种天然多孔蜂窝材料,具备优良的能量耗散能力,在木结构建筑、包装工程、汽车运输和航空航天等领域发挥着重要的吸能减震作用.然而,在实际应用中,木材的压缩力学和吸能特性受其内部多尺度结构和外部温湿度等多重因素影响,作用机制不明限制其作为吸能减震材料在高端防护中的高效高值利用,探究温湿度对木材压缩耗能行为的影响规律与作用机制,对推动减震木材的科学制备和安全使用具有重要意义.文中首先综述木材固有结构组成对其压缩吸能特性的影响机制,其次分析湿度、温度及其耦合作用对木材压缩力学性能的作用规律,进而提出应加强木材压缩吸能行为的温湿度效应研究,以阐明木材多尺度结构对外界温湿度的内在响应机制,为减震木材的性能调控和安全应用提供理论依据.
Wood is a natural porous honeycomb material with excellent energy dissipation capacity,which plays an important role in energy and shock absorption in the fields such as packaging,transportation and aerospace.However,the compressive mechanical response and energy-absorbing properties of wood are affected by its multiscale structure,temperature and humidity,which limit its applications in the packaging field.Therefore,exploring the influence and mechanism of temperature and humidity on the compression energy dissipation of wood is of great significance for the scientific preparation and safe use of shock-absorbing wood.This paper firstly describes the influence of the structural composition of wood on its compression properties and energy absorption,and then summarizes and analyzes the acting patterns and influence mechanism behind the effects of environmental factors such as humidity,temperature and their coupling on the mechanical response of wood compression.In the future,more focuses should be placed upon the research on the temperature and humidity effects on the compression and energy absorption properties of wood and the intrinsic response mechanism of wood's multiscale structural composition affected by environmental temperature and humidity,in order to provide a reference for the safe use of shock-absorbing wood and optimization of the design.
徐诗雨;吕文华;胡极航;杨志一;祁斌
中国林业科学研究院木材工业研究所,北京 100091中国林业科学研究院木材工业研究所,北京 100091中国林业科学研究院木材工业研究所,北京 100091中国林业科学研究院木材工业研究所,北京 100091中国林业科学研究院木材工业研究所,北京 100091
农业科技
木材层级多孔结构压缩吸能特性温度湿度
woodhierarchical porous structurecompressive energy absorption propertytemperaturehumidity
《世界林业研究》 2025 (5)
71-77,7
国家自然科学基金项目"木材分级多孔构造的压缩响应及能量耗散机制研究"(32371805).
评论