可拆装竹集成材家具用榫接合的力学性能研究  

Study on the Detachable Design and Mechanical Property of Mortise Joints for Laminated Bamboo Furniture

作　　者：连彩萍 翁昊辰 吴智慧 陈美玲 季加贵 LIAN Cai-ping;WENG Hao-chen;WU Zhi-hui;CHEN Mei-ling;JI Jia-gui(College of Furnishings and Industrial Design,Nanjing Forestry University,Nanjing 210037,Jiangsu,China;College of Materials Science and Engineering,Nanjing Forestry University,Nanjing 210037,Jiangsu,China;Zhejiang Sanjian Industry&Trade Co.,Ltd.,Lishui 323000,Zhejiang,China)

机构地区：[1]南京林业大学家居与工业设计学院,江苏南京210037 [2]南京林业大学材料科学与工程学院,江苏南京210037 [3]浙江三箭工贸有限公司,浙江丽水323000

出　　处：《竹子学报》2023年第1期38-44,共7页Journal of Bamboo Research

基　　金：“十三五”国家重点研发计划项目课题(2018YFD0600304);教育部2021年产学合作协同育人项目(202101148002)。

摘　　要：【目的】为实现竹集成材家具绿色榫接合结构的可拆装性。【方法】设计了一款未施胶的可拆装榫接合结构,测试了施胶的榫接合结构、未施胶的2种不同粗糙度的榫接合结构以及未施胶的可拆装榫接合结构的抗拔力学性能及粗糙度,并分析了节点的破坏形态及其加载过程中的力学行为。【结果】施胶榫接合结构主要是胶层破坏,未施胶的榫接合结构则榫头与榫槽均未破坏;可拆装榫接合结构其粗糙度(5.64μm)小于对照榫接合结构(7.54μm),但其抗拔力(1961.0 N)远超对照组榫接合结构(520.7 N),同时该榫结构节点处接合紧固;榫接合结构的抗拔力位移曲线整体呈直线上升—缓慢曲线上升—直线上升—直线下降4个发展阶段。【结论】设计的可拆装榫接合结构加工简单,绿色环保,健康安全,榫头可实现批量化、标准化生产。该研究对竹集成材家具结构设计合理性具有重要的指导意义,有助于竹家具的创新发展。【Objective】In order to realize the disassembly and assembly of the mortise joint structure of bamboo furniture.【Method】A mortise joint structure without glue was designed.In this study,the tensile mechanical properties and roughness of two conventional mortise joint structures with glue and without glue including different roughness and the newly designed mortise joint structure were tested,and the failure characteristics of the joint and its mechanical behavior in the loading process were analyzed.【Result】The results showed that the glue layer was mainly damaged in the glued mortise joint structure,while the mortise and tenon were not damaged in the unglued tenon joint structure.The roughness of the newly designed mortise joint structure is much less than that of the control mortise joints,but its tensile force(1961.0 N)was much higher than that of the control mortise joints(520.7 N),and the joints of the mortise structure are fastened.The tensile force and displacement curve of the mortise joint structure showed four development stages:straight-line rise,slow curve rise,straight-line rise and straight-line decline.【Conclusion】The design of detachable mortise joint structure has the characteristics of simple processing technology,green environmental protection,health and safety,and its tenon can realize mass,standardized production.This study has important guiding significance for the rationality of bamboo furniture structure design,and is conducive to the innovative development of bamboo furniture.

关 键 词：竹集成材家具 榫接合结构 可拆装设计 抗拔力 失效特征 

分 类 号：TS664.2[轻工技术与工程]