摘要
基于MATLAB图像处理技术,本文开发了用于测定复合材料纤维分布状态的计算机图像处理程序。以T300/BMP316复合材料为对象,采用三点弯曲法研究了纤维分布均匀性对复合材料弯曲性能的影响,用有限元方法分析了纤维分布不均匀的复合材料弯曲变形时的应力分布,提出了运用抗弯系数R评价其性能。结果表明,基于MATLAB图象处理技术可快速准确地测定纤维增强复合材料的纤维密实指数,确定纤维的分布状态。纤维分布不均的T300/BMP316复合材料弯曲性能受纤维分布方式和载荷方向的影响极大,抗弯系数R反映了纤维分布与性能的关系。
A computer program to determine the fiber distribuionn is developed based on MATLAB image processing technology. The effect of fiber distribution uniformity on the flexural properties of T300/BMP316 unidirectional composite laminates is studied using bending test under three-point loading. The finite element analysis is performed to investigate the stress distribution of the deformed model structure with nonuniform fiber distribution. The flexural coeffcient R is put forward. The results show that the program can quickly and correctly determine the fiber compaction index of composite laminates and flexural properties are greatly affected by the fiber distribution type and load direction. The flexural coefficient R can be used to justify the properties of the composite laminates with nonuniform fiber distribution.
出处
《玻璃钢／复合材料》
CAS
CSCD
北大核心
2006年第4期7-12,共6页
Fiber Reinforced Plastics/Composites
基金
国家973项目(2003CB615602)
关键词
纤维分布
弯曲性能
抗弯系数
MATLAB
fiber distribution
flexural properties
flexural coefficient
MATLAB
