Z-pins参数对复合材料层间韧性的影响  

Effect of Z-pins on mode I interlaminar toughness of composites

作　　者：刘韡[1] 陈豪文 张为民[1] 矫桂琼[2] 

机构地区：[1]西安建筑科技大学理学院,陕西西安710055 [2]西北工业大学力学与土木建筑学院,陕西西安710072

出　　处：《西安建筑科技大学学报（自然科学版）》2014年第6期894-897,共4页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：陕西省教育厅专项科研基金项目(14JK1394)

摘　　要：Z-pins植入平纹编织C/Si C陶瓷基复合材料层压板能提高层间I型断裂韧性.作为一种一体化设计的新型材料,Z-pin增强陶瓷基复合材料具有重要的应用前景.研究Z-pins增强陶瓷基复合材料的层间断裂韧性对于指导材料的设计与应用具有十分重要的理论意义和实用价值.基于离散弹簧-悬臂梁模型研究了Z-pins直径、Z-pins间距、单位厘米宽度上Z-pins个数对平纹编织陶瓷基复合材料I层间断裂韧性的影响.结果表明:增加Z-pins直径、减小Z-pins间距和增加单位厘米宽度上Z-pins个数可以提高Z-pins增强平纹编织C/Si C陶瓷基复合材料I型层间断裂韧性.Interlaminar fracture toughness of mode I is improved by Z-pins insertion into woven C/SiC ceramic matrix composites. As integratedly designed new materials, Z-pins reinforced ceramic matrix composites （CMCs） have wide application. The researches in interlaminar fracture toughness of Z-pins reinforced CMCs is very important both theoretically and practically for guiding the design and application of materials. Based on discrete spring-cantilever beam model, the effect of the diameter and the spacing of Z-pins and the number of Z-pins per cm width on mode I delamination fracture toughness were investigated. Conclusions are shown as following： Increasing diameters of Z-pins, and reducing spacing of Z-pins and increasing the number of Z-pins per cm width can imorove mode I delamination fracture touehness of woven C/SiC ceramic matrix composites.

关 键 词：Z-PINS 陶瓷基复合材料 层间断裂韧性 

分 类 号：TB321[一般工业技术—材料科学与工程]