含孔隙形态分布特征的孔隙率超声衰减测试建模  

A Morphological Study Based Ultrasonic Attenuation Model of Carbon Fiber Reinforced Plastics Porosity Testing

作　　者：刘继忠[1] 蒋志峰[2] 华志恒[3] 

机构地区：[1]南昌大学机电学院,南昌330029 [2]浙江科技学院,杭州310023 [3]浙江大学机械与能源工程学院,杭州310027

出　　处：《航空材料学报》2006年第2期67-71,共5页Journal of Aeronautical Materials

摘　　要：借助显微照相分析系统,对碳纤维复合材料孔隙形态特征进行观察和统计分析。结果表明,复合材料孔隙形态特征与孔隙含量存在着密切关系,孔隙长度特征参数近似呈对数正态分布,并建立了含孔隙形态分布特征的孔隙率超声衰减测试模型。A morphological study of voids and a statistical study of the voids morphological features in carbon fiber reinforced plastics (CFRP) were implemented using microscopy and image analyzing system. The results show the voids morphological features are correlated with the CFRP porosity and the fraction of voids is nearly a logarithmic normal distribution with the voids size. Based on the study, an ultrasonic attenuation model of CFRP porosity testing was established in which the voids statistical and morpho...

关 键 词：孔隙形态 孔隙率 碳纤维复合材料 超声衰减 

分 类 号：TB332[一般工业技术—材料科学与工程]