摘要
为研究碳纤维针刺毡的结构并对其参数化表征,基于混合韦伯(Weibull)分布分析了3种碳纤维针刺毡的结构参数。对碳纤维针刺毡的纤维长度分布进行了拟合,并分析了造成纤维长度分布规律不同的原因。采用纯弯梁模型模拟碳纤维在针刺毡中的弯曲状态,并对弯曲参数进行了统计分析。结果表明,采用混合Weibull分布模型分析碳纤维针刺毡的内部结构,可真实反映参数指标的分布规律。无论是纤维长度还是纤维的弯曲参数,拟合曲线都有较高的拟合度。此外,采用纯弯梁模型模拟弯曲的碳纤维,不仅可模拟纤维在针刺毡中的弯曲形貌,还可将测量结果用于碳纤维针刺毡的参数化建模。
To study the structure of carbon fiber needled felts and characterize parameterized, we studied the structure parameters of three kinds of carbon fiber needled felts based on mixed Weibull distribution. The fitting curves of fiber length distributions were obtained, and the differences were discussed. The beam under pure bending model was used to simulate the curved fiber, and the bending parameters were obtained. The results show that the mixed Weibull distribution could be used to analyze the structure of carbon fiber needled felts. The fitting curves are well consonant with the observation data. In addition, by regarding the curved carbon fiber as beam under pure bending, the structure of curved fibers could be simulated, which could be used to generate the 3-D geometric model of carbon fiber needled felts.
作者
宋磊磊
赵玉芬
李嘉禄
陈利
耿伟
SONG Leilei ZHAO Yufen LI Jialu CHEN Li GENG Wei(Key Laboratory of Advanced Textile Composites, Ministry of Education, Tianjin Polytechnic University, Tianjin 300387, Chin)
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2017年第6期52-57,共6页
Journal of Textile Research
基金
天津市科技支撑计划重点项目(15ZCZDGX00340)
关键词
碳纤维
针刺毡
混合韦伯分布
结构表征
长度分布
carbon fiber
needled felt
mixed Weibull distribution
structural characterization
length distribution
