[1]沈杨,王天龙*. L型构件双圆棒榫节点抗弯强度模型及其数值模拟[J].西北林学院学报,2021,36(5):168-172.[doi:10.3969/j.issn.1001-7461.2021.05.25]
　SHEN Yang,WANG Tian-long*. Numerical Simulation Research on the Bending Strength of Double Dowel Joint[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2021,36(5):168-172.[doi:10.3969/j.issn.1001-7461.2021.05.25]
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 L型构件双圆棒榫节点抗弯强度模型及其数值模拟()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第36卷
期数:
2021年第5期
页码:
168-172
栏目:
出版日期:
2021-09-30

文章信息/Info

Title:
 Numerical Simulation Research on the Bending Strength of Double Dowel Joint
文章编号:
1001-7461(2021)05-0168-05
作者:
 沈杨; 王天龙*
 (北京林业大学 木质材料科学与应用教育部重点实验室，木材科学与工程北京市重点实验室，北京 100083)
Author(s):
 SHEN Yang; WANG Tian-long*
 （Key Laboratory of Wood Material Science and Utilization of the Ministry of Education/Beijing City Key Laboratory of Wood Science and Engineering,Beijing Forestry University,Beijing 100083,China）
关键词:
 ; 圆棒榫; 抗弯强度; 家具; 节点; 有限元
Keywords:
 ; dowel;  bending resistance strength;  furniture;  corner joints;  finite element analysis
分类号:
S781.21
DOI:
10.3969/j.issn.1001-7461.2021.05.25
文献标志码:
A
摘要:
 为解决现有圆棒榫节点抗弯强度研究中试验偶然性的问题，采用有限元法，建立L型构件双圆棒榫节点抗弯强度模型，进行数值模拟，并通过相应的试验对模拟结果进行了验证。结果表明：1)所建立的有限元模型可用于实木榫接合家具设计中的抗弯强度预测，不同直径下有限元分析结果与试验结果平均误差均<15%，且圆棒榫变形情况与试验结果相符；2)双圆棒榫接合构件抗弯节点主要破坏形式为榫损伤，抗弯强度随直径增加而增加，但增幅减小；3)直径为10 mm的双圆棒榫可用于椅子腿部与望板接合部位，直径为8 mm的双圆棒榫可用于椅子腿与扶手连接处，性能满足GB 103547所规定的要求，直径为6 mm的双圆棒榫不适用于椅子连接。
Abstract:
 In order to solve the problem of accidental test in the research on the bending strength of dowels,through the finite element method,the bending strength model of L-shaped double dowel joints was established,and the experimental results were used to verify the model.The results showed that 1) the finite element model established in this research could be used to predict the bending strength.The error between the finite element analysis results and the experimental results was within 15%,and the deformation of dowel was consistent with the experiment.2) The main failure form was the dowel damage,the bending strength of the double dowel increased as the increase of diameter with reduced amplitude of increment.3) The double dowel with a diameter of 10 mm could be used for the joint between the chair leg and the viewing plate,the 8 mm size could be used for the connection of the chair armrest,and the 6 mm size was not suitable for the chair connection,and the performance requirements of GB 103547 was met with the 10 mm and 8 mm sizes.

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备注/Memo

备注/Memo:
 收稿日期：2020-09-28修回日期：2020-10-10
基金项目：林业公益性行业科研专项重大项目（201404502）。
作者简介：沈杨。研究方向：家具设计与制造。E-mail：1051985583@qq.com
*通信作者：王天龙，硕士生导师，副教授。研究方向：家具设计与制造。E-mail：luckywtl@126.com
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