A Review of Natural Joint Systems and Numerical Investigation of Bio-Inspired GFRP-to-Steel Joints.
A Review of Natural Joint Systems and Numerical Investigation of Bio-Inspired GFRP-to-Steel Joints.
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DOI：
10.3390/ma9070566
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发表时间：
2016-07-12
期刊：
影响因子：
--
通讯作者：
Sutcliffe MPF
中科院分区：
文献类型：
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作者：
Avgoulas EI;Sutcliffe MPF
自然界中使用的节点类型多种多样，这些类型可以启发工程节点。为了设计这样的仿生关节，首先要了解生物关节是如何工作的。从力学的角度对自然关节进行了全面的文献综述。这被用来开发基于自然成功地用来连接不同组织的不同方法/功能的分类。自然界用来连接不同材料的关键方法之一是在插入部位设置一个刚性过渡区。这种方法被用来为几种玻璃纤维增强塑料(GFRP)与钢的粘接连接配置提出在连接部位具有过渡区刚度的仿生解决方案。过渡区被用来减小连接件的材料刚度失配。数值有限元模型被用来确定使接头的潜在失效最小化的材料刚度的最佳变化。最好的仿生关节显示，与标准关节相比，关节强度增加了118%。
There are a great variety of joint types used in nature which can inspire engineering joints. In order to design such biomimetic joints, it is at first important to understand how biological joints work. A comprehensive literature review, considering natural joints from a mechanical point of view, was undertaken. This was used to develop a taxonomy based on the different methods/functions that nature successfully uses to attach dissimilar tissues. One of the key methods that nature uses to join dissimilar materials is a transitional zone of stiffness at the insertion site. This method was used to propose bio-inspired solutions with a transitional zone of stiffness at the joint site for several glass fibre reinforced plastic (GFRP) to steel adhesively bonded joint configurations. The transition zone was used to reduce the material stiffness mismatch of the joint parts. A numerical finite element model was used to identify the optimum variation in material stiffness that minimises potential failure of the joint. The best bio-inspired joints showed a 118% increase of joint strength compared to the standard joints.