搭接长度对Z-pins增强陶瓷基复合材料接头连接性能的影响  

Effect of the Overlap Length on the Connecting Performance of the Single-lap Joint Reinforced by Z-pins

作　　者：陶永强[1] 矫桂琼[1] 王波[1] 常岩军[1] 

机构地区：[1]西北工业大学力学与土木建筑学院,陕西西安710072

出　　处：《材料科学与工程学报》2008年第4期593-598,共6页Journal of Materials Science and Engineering

基　　金：自然科学基金资助项目(90405015);高等学校博士学科点专项科研基金资助项目(20030699040)

摘　　要：本文对搭接长度分别为15mm,20mm,23mm,37mm,60mm的Z-pins增强陶瓷基复合材料接头在单向载荷作用下的连接性能进行了试验研究和数值模拟。试验结果表明接头的最终失效形式有两种:(1)搭接长度大于、等于20mm的接头由搭接板断裂而失效;(2)搭接长度等于15mm的接头由搭接面的脱胶而失效。在搭接长度为20mm^60mm之间,接头的最大破坏载荷与搭接长度之间呈线性关系变化。采用有限元的方法对搭接接头的破坏过程进行了数值模拟,模拟结果与试验结果吻合较好,进而得到了介于上述两种破坏模式之间的搭接接头的搭接长度。In this paper, the overlap length of single-lap joint reinforced by z-pins is 15mm, 20mm, 23mm, 37mm and 60mm, respectively. The experimental results indicate that the final destructive modes can be categorized： （a） the lap ruptures, when the overlap length is more than 20mm; （b） the bond-line cracks, when the overlap length equals to 15mm. The paper simulates the connecting performance of different overlap length＇s single-lap joints reinforced by Z-pins; its result is agreed with experimental result. The dividing line of two different destructive modes is 18mm-19mm.

关 键 词：陶瓷基复合材料(CMC) 接头 Z-PINS 搭接长度 连接性能 

分 类 号：TB332[一般工业技术—材料科学与工程]