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Investigation of bond-slip model of timber-to-timber bonded joint strengthened with different types of nets
Mechanics Based Design of Structures and Machines ( IF 2.9 ) Pub Date : 2020-10-29 , DOI: 10.1080/15397734.2020.1839493
Shaimaa Sakin 1 , Özgür Anil 2 , Murat Uzel 3 , Abdullah Togay 4
Affiliation  

Abstract

In this study, an experimental and numerical analysis of the bond-slip model is made on timber-to-timber bonding connections. The variables examined in this study are the types of adhesives used for bonding, the length of adhesion, and the types of reinforcement used to increase the adherence to the adhesion surface. Two different types of adhesives were used namely polyurethane and epoxy. Three different bonding lengths of 180, 250, and 350 mm were chosen as the bonding length. For each variable, four different test specimens were produced and tested under axial tensile force as a nonreinforced reference test specimen and aluminum, fiber, and steel net type as a reinforced bonding strength. In the experimental study, a total of 24 test specimens were tested and the bond-slip behavior of the timber connections and changes in the axial strain values along the timber adhesion zone were measured. By interpreting the experimental results, a bond-slip model is proposed for the timber bonding connections. In this proposed bond-slip model, the effects of the variables examined in the experimental study are interpreted. In this study, the most successful bond-slip behavior and load-carrying capacity have shown in the test specimen, which is reinforced with steel material reinforcement mesh, using epoxy adhesive, and 350 mm adhesion length. By using the experimental results, the bond-slip behavior is verified by numerical modeling with ANSYS software, and a finite element model was formed.



中文翻译:

不同类型网加固木-木胶接节点的胶结滑移模型研究

摘要

在这项研究中,对木材与木材的粘合连接进行了粘合滑移模型的实验和数值分析。本研究中检查的变量是用于粘合的粘合剂类型、粘合长度以及用于增加粘合表面粘合力的增强材料类型。使用了两种不同类型的粘合剂,即聚氨酯和环氧树脂。选择 180、250 和 350 mm 三种不同的键合长度作为键合长度。对于每个变量,生产了四个不同的试样,并在轴向拉力下进行了测试,作为非增强参考试样和铝、纤维和钢网类型作为增强结合强度。在实验研究中,总共测试了 24 个试样,并测量了木材连接处的粘结滑动行为以及沿木材粘合区的轴向应变值的变化。通过解释实验结果,提出了木材粘合连接的粘合滑移模型。在这个提议的债券滑移模型中,解释了实验研究中检查的变量的影响。在这项研究中,最成功的粘结滑移行为和承载能力在试验样本中表现出来,该样本由钢材增强网加固,使用环氧树脂粘合剂,粘附长度为 350 mm。利用实验结果,利用ANSYS软件通过数值建模验证了粘结滑移行为,并形成了有限元模型。通过解释实验结果,提出了木材粘合连接的粘合滑移模型。在这个提议的债券滑移模型中,解释了实验研究中检查的变量的影响。在这项研究中,最成功的粘结滑移行为和承载能力在试验样本中表现出来,该样本由钢材增强网加固,使用环氧树脂粘合剂,粘附长度为 350 mm。利用实验结果,利用ANSYS软件通过数值建模验证了粘结滑移行为,并形成了有限元模型。通过解释实验结果,提出了木材粘合连接的粘合滑移模型。在这个提议的债券滑移模型中,解释了实验研究中检查的变量的影响。在这项研究中,最成功的粘结滑移行为和承载能力在试验样本中表现出来,该样本由钢材增强网加固,使用环氧树脂粘合剂,粘附长度为 350 mm。利用实验结果,利用ANSYS软件通过数值建模验证了粘结滑移行为,并形成了有限元模型。最成功的粘结滑移行为和承载能力表现在试验样品中,该样品由钢材增强网加固,使用环氧粘合剂,粘合长度为 350 毫米。利用实验结果,利用ANSYS软件通过数值建模验证了粘结滑移行为,并形成了有限元模型。最成功的粘结滑移行为和承载能力表现在试验样品中,该样品由钢材增强网加固,使用环氧粘合剂,粘合长度为 350 毫米。利用实验结果,利用ANSYS软件通过数值建模验证了粘结滑移行为,并形成了有限元模型。

更新日期:2020-10-29
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